筑波大学｜理工学群｜化学類

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  市川淳士研究室　業績
   
 
   
  論文リスト
   
   

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なお、2006年以前の論文リストはPDFファイルでご案内いたします。
               
         
2022  
    (173) Ishibashi, Y.; Fujita, T.; Ichikawa, J.　"Two-Step Synthesis of 2-Trifluoromethylated and 2-Difluoromethylated Benzoheteroles Starting from HFO-1224yd(Z) and HFO-1233yd(Z)," Org. Lett. 2022, 50, 9306.      
               
    (172) Kinoshita, R.; Tomura, F.; Fujita, T.; Ichikawa, J.　"A New Family of Tropylium Ions: Tropone–Triarylborane Complexes,"　Eur. J. Inorg. Chem. 2022, e202200430.      
               
    (171) Fujita, T.; Fukuda, T.; Suzuki, N.; Ichikawa, J.　"Rapid Synthesis of Fused Polycyclic Heteroaromatics via Successive Vinylic/Aromatic C–F Bond Activation," Eur. J. Org. Chem. 2022, 37, e202201015.      
     
See also (Cover Picture): Eur. J. Org. Chem. 2022, 37, e202201015.
      
      See also; "Fused Heteroaromatics via Double C–F Activation," Synfacts 2023, 19, 0024.      
               
    (170) Fuchibe, K.; Morota, Y.; Miura, T.; Ichikawa, J.　"Difluorocarbene-Based [4 + 1] Cycloaddition Strategy for Synthesizing Derivatives of 5-Fluorinated Thiazoles and Oxazoles," Chem. Lett. 2022, 51, 778–780.      
               
    (169) Takao, G.; Hakozaki, T.; Miura, K.; Urushibara, Y.; Fuchibe, K.; Ichikawa, J. "Construction of Substituted [4]Acene Frameworks Based on Double Cationic Cyclizations of Fluoroalkenes," Synthesis 2022, 54, 3883-3898.      
      See also; "[4]Acenes from Double Cyclizations of Fluoroalkene," Synfacts 2023, 19, 0135.      
               
    (168) Fujita, T.; Kobayashi, Y.; Takahashi, I.; Morioka, R.; Ichitsuka, T.; Ichikawa, J. "Nickel-Catalyzed Reductive Allyl–Aryl Cross-Electrophile Coupling via Allylic C–F Bond Activation," Chem. Eur. J. 2022, 28, e202103643.      
               
    (167) Fuchibe, K.; Mukohara, I.; Yamada, A.; Miyazaki, D.; Takayama, R.; Ichikawa, J. "Construction of Thienothiophene and Thienofuran Ring Systems via Ring Expansion of Difluorothiiranes Generated from Dithioesters," Org. Lett. 2022, 24, 169–174.      
         
2021  
    (166) Fuchibe, K.; Yamada, A.; Hachinohe, K.; Matsumoto, K.; Takayama, R.; Ichikawa, J. "Synthesis of Difluoroalkenes from Thiocarbonyl Compounds via Difluorothiiranes: Electrophilic Counterpart to Wittig-Type Difluoromethylidenation," Bull. Chem. Soc. Jpn. 2021, 94, 2451–2465.      
               
    (165) Fujita, T.; Morioka, R.; Fukuda, T.; Suzuki, N.; Ichikawa, J. "Acid-Mediated Intermolecular C–F/C–H Cross-Coupling of 2-Fluorobenzofurans with Arenes: Synthesis of 2-Arylbenzofurans," Chem. Commun. 2021, 57, 8500–8503.      
               
    (164) Fujita, T.; Shoji, N.; Yoshikawa, N.; Ichikawa, J. "Helicene synthesis by Brønsted acid-catalyzed cycloaromatization in HFIP [( CF3)2CHOH]," Beilstein J. Org. Chem. 2021, 17, 396–403.      
         
2020  
    (163) Fujita, T.; Takeishi, M.; Ichikawa, J. "Copper-catalyzed [3 + 2] Annulation of Azides with a (Difluorovinyl)zinc Complex, Fluoroacetylene Equivalent," Org. Lett.2020, 22, 9253–9257.      
               
    (162) Morioka, R.; Fujita, T.; Ichikawa, J. "Facile Synthesis of 2-Fluorobenzofurans: 5-endo-trig Cyclization of b,b-Difluoro-o-hydroxystyrenes,"Helv. Chim. Acta 2020, 103, e2000159.      
               
    (161) Fuchibe, K.; Fushihara, T.; Ichikawa, J. "Synthesis of Ring-Fluorinated Thiophene Derivatives Based on Single C–F Bond Activation of CF3 -Cyclopropanes: Sulfanylation and 5-endo-trig Cyclization," Org. Lett. 2020, 22, 2201–2205.    
               
    (160) Fuchibe, K.; Abe, M.; Idate, H.; Ichikawa, J. "Fluorinated Phenanthrenes as Aryne Precursors: PAH Synthesis Based on Domino Ring Assembly Using 1,1‐Difluoroallenes," Chem. Asian J. 2020, 15, 1384–1392.    
     
See also (Front Cover Picture): Chem. Asian J. 2020, 15, 1181.
      
               
    (159) Fuchibe, K.; Abe, M.; Sasaki, M.; Ichikawa, J. "Gold-Catalyzed Electrophilic Activation of 1,1-Difluoroallenes: α- and γ-Selective addition of Heteroatom Nucleophiles," J. Fluorine Chem. 2020, 232, 109452.    
               
    (158) Kubo, T.; Fujita, T.; Ichikawa, J. "Nickel-catalyzed [4 + 2] Cycloaddition of Styrenes with Arynes via 1:1 Cross-coupling: Synthesis of 9,10-Dihydrophenanthrenes," Chem. Lett. 2020, 49, 264–266.    
               
         
2019  
    (157) Fuchibe, K.; Takao, G.; Takahashi, H.; Ijima, S.; Ichikawa, J. "Methylarene-Based PAH Synthesis via Domino Cyclization of 1,1-Difluoro-1-alkenes," Bull. Chem. Soc. Jpn. 2019, 92, 2019–2029.      
               
    (156) Takahashi, I.; Fujita, T.; Shoji, N.; Ichikawa, J. "Brønsted Acid-Catalysed Hydroarylation of Unactivated Alkynes in Fluoroalcohol–Hydrocarbon Biphasic System: Construction of Phenanthrene Frameworks," Chem. Commun. 2019, 55, 9267–9270.    
     
See also (Front Cover Picture): Chem. Commun. 2019, 55, 9219–9219.
      
               
    (155) Fuchibe, K.; Watanabe, S.; Takao, G.; Ichikawa, J. "Synthesis of (Difluoromethyl)naphthalenes by Ring Construction Strategy: C–C Bond Formation on the Central Carbon of 1,1-Difluoroallenes via Pd-Catalyzed Insertion," Org. Biomol. Chem. 2019, 17, 5047–5054.    
               
    (154) Fujita, T.; Ide, K.; Jankins, T. C.; Nojima, T.; Ichikawa, J. "Synthesis of 3-(Trifluoromethyl)indoles via Oxidative Cyclization of o-Sulfonamido-α-(trifluoromethyl)styrenes," Asian J. Org. Chem. 2019, 8, 637–640.      
     
See also (Front Cover Picture): Asian J. Org. Chem. 2019, 8, 564–564.
      
               
    (153) Fuchibe, K.; Tsuda, N.; Shigeno, K.; Ichikawa, J. "Construction of Pinpoint-Fluorinated Benzothiophene Frameworks Using Palladium-Catalyzed Cyclization of o-(Fluorovinyl)phenyl-Substituted Thiophenes," Heterocycles 2019, 2, 1196-1216.      
               
    (152) Fujita, T.; Hattori, M.; Matsuda, M.; Morioka, R.; Jankins, T. C.; Ikeda, M.; Ichikawa, J. "Nucleophilic 5-endo-trig Cyclization of 2-(Trifluoromethyl)allylic Metal Enolates and Enamides: Synthesis of Tetrahydrofurans and Pyrrolidines Bearing exo-Difluoromethylene Units," Tetrahedron 2019, 75, 36-46.    
               
         
2018  
    (151) Fuchibe, K.; Oki, R.; Hatta, H.; Ichikawa, J. “Single C–F Bond Activation of the CF3 Group with a Lewis Acid: CF3–Cyclopropanes as Versatile 4,4–Difluorohomoallylating Agents," Chem. Eur. J. 2018, 24, 17932-17935.    
               
    (150) Fujita, T.; Morioka, R.; Arita, T.; Ichikawa, J. " sp3Carbon–Fluorine Bond Activation in 2,2-Difluorohomoallylic Alcohols via Nucleophilic 5-endo-trig Cyclisation: Synthesis of 3-Fluorinated Furan Derivatives," Chem. Commun. 2018, 54, 12938-12941.      
     
See also (Back Cover Picture): Chem. Commun. 2018, 54, 12938–12938.
      
               
    (149) Fuchibe, K.; Ichikawa, J. "Fluorine-Directed and -Activated Nazarov Cyclizations: Selective Synthesis of Fluorinated Cyclopentenones," Chim. Oggi. 2018, 36, 36-39. [Account]      
               
    (148) Fujita, T.; Konno, N.; Watabe, Y.; Ichitsuka, T.; Nagaki, A.; Yoshida, J.; Ichikawa, J. "Flash Generation and Borylation of 1-(Trifluoromethyl)vinyllithium toward Synthesis of α-(Trifluoromethyl)styrenes," J. Fluorine Chem. 2018, 207, 72–76.    
               
    (147)
Fuchibe, K.; Takayama, R.; Ichikawa, J. "Metal-Free Synthesis of α,α-Difluorocyclopentanone Derivatives via Regioselective Difluorocyclopropanation/VCP Rearrangement of Silyl Dienol Ethers," ARKIVOC 2018, ⅱ, 72-80.
    
               
    (146)
Fuchibe, K.; Takayama, R.; Aono, T.; Hu, J.; Hidano, T.; Sasagawa, H.; Fujiwara, M.; Miyazaki, S.; Nadano, R.; Ichikawa, J. "Regioselective Syntheses of Fluorinated Cyclopentanone Derivatives: Ring Construction Strategy Using Transition-Metal– Difluorocarbene Complexes and Free Difluorocarbene," Synthesis 2018, 50, 514–528.
     
               
         
2017  
    (145) Fujita, T.: Kinoshita, R.; Takanohashi, T.; Suzuki, N.; Ichikawa, J. "Ring-Size-Selective Construction of Fluorine-Containing Carbocycles via Intramolecular Iodoarylation of 1,1-Difluoro-1-alkenes," Beilstein J. Org. Chem. 2017, 13, 2682–2689.    
               
    (144)
Fuchibe, K.; Shigeno, K.; Zhao, N.; Aihara, H.; Akisaka, R.; Morikawa, T.; Fujita, T.; Yamakawa, K.; Shimada, T.; Ichikawa, J."Pinpoint-Fluorinated Polycyclic Aromatic Hydrocarbons (F-PAHs): Syntheses of Difluorinated Subfamily and Their Properties," J. Fluorine Chem. 2017, 203, 173-184.
    
               
    (143)
Takayama, R.; Yamada, A.; Fuchibe, K.; Ichikawa, J. "Synthesis of Sulfanylated Difluoroalkenes: Electrophilic Difluoromethylidenation of Dithioesters with Difluorocarbene," Org. Lett. 2017, 19, 5050-5053.
      
               
    (142)
Fuchibe, K.; Imaoka, H.; Ichikawa, J. "Synthesis of Pinpoint-Fluorinated Polycyclic Aromatic Hydrocarbons: Benzene Ring Extension Cycle Involving Microwave-Assisted SNAr Reaction," Chem. Asian J. 2017, 12, 2359–2363.
    
     

See also (Front Cover Picture): Chem. Asian J. 2017, 12, 2332–2332.

      
               
    (141)
Watabe, Y.; Kanazawa, K.; Fujita, T.; Ichikawa, J. "Nickel-Catalyzed Hydroalkenylation of Alkynes via C–F Bond Activation: Synthesis of 2-Fluoro-1,3-dienes," Synthesis 2017, 49, 3569–3575.
      
               
    (140)
Fuchibe, K.; Hatta, H.; Oh, K.; Oki, R.; Ichikawa, J. "Lewis Acid-Promoted Single C-F Bond Activation of the CF3 Group: SN1'-Type 3,3-Difluoroallylation of Arenes with 2-Trifluoromethyl-1-alkenes," Angew. Chem. Int. Ed. 2017, 56, 5890–5893.
      
               
    (139)
Takahashi, I.; Hayashi, M.; Fujita, T.; Ichikawa, J. "Brønsted Acid-Catalyzed Tandem Cycloaromatization of Naphthalene-Based Bisacetals: Selective Synthesis of Ortho-Fused Six-Hexagon Benzenoids," Chem. Lett. 2017, 46, 392–394.
    
               
    (138)
Saito, K.; Ikeda, T.; Yamamura, Y.; Saitoh, H.; Hishida, M.; Kobayashi, Y.; Fujita, T.; Ichikawa, J. "Cell-Quintupling: Structural Phase Transition in a Molecular Crystal, bis(trans-4–butylcyclohexyl)methanol," J. Chem. Phys. 2017, 146, 074503.
    
               
    (137)
Fujita, T.; Takazawa, M.; Sugiyama, K.; Suzuki, N.; Ichikawa, J. "Domino C–F Bond Activation of CF3 Group: Synthesis of Fluorinated Dibenzo[a,c][7]annulenes from 2-Trifluoromethyl-1-alkenes and 2,2'-Diceriobiaryls," Org. Lett. 2017, 19, 588–591.
      
               
    (136)
Fuchibe, K.; Takayama, R.; Yokoyama, T.; Ichikawa, J. "Regioselective Synthesis of α-Fluorinated Cyclopentenones by Organocatalytic Difluorocyclopropanation and Fluorine-Directed and -Activated Nazarov Cyclization," Chem. Eur. J. 2017, 23, 2831–2838.
    
               
    (135)
Fujita, T.; Takahashi, I.; Hayashi, M.; Wang, J.; Fuchibe, K.; Ichikawa, J. "Facile Synthesis of Polycyclic Aromatic Hydrocarbons: Brønsted Acid-Catalyzed Dehydrative Cycloaromatization of Carbonyl Compounds in 1,1,1,3,3,3-Hexafluoropropan-2-ol," Eur. J. Org. Chem. 2017, 2, 262–265.
    
               
         
2016  
    (134)
Fuchibe, K.; Abe, M.; Oh, K.; Ichikawa, J. "Preparation of 1,1-Difluoroallenes by Difluorovinylidenation of Carbonyl Compounds," Org. Synth. 2016, 93, 352–366.
      
               
    (133)
Suzuki, N.; Fujita, T.; Amsharov, K.; Ichikawa, J. "Aluminium-Mediated Aromatic C–F Bond Activation: Regioswitchable Construction of Benzene-Fused Triphenylene Frameworks," Chem. Commun. 2016, 52, 12948–12951.
    
     
See also (Inside Front Cover Picture): Chem. Commun. 2016, 52, 12918–12918.
      
               
    (132)
Fuchibe, K.; Aono, T.; Hu, J.; Ichikawa, J.Copper(I)-Catalyzed [4 + 1] Cycloaddition of Silyl Dienol Ethers with Sodium Bromodifluoroacetate: Access to β,β-Difluorocyclopentanone Derivatives," Org. Lett. 2016, 18, 4502–4505.
      
               
    (131)
Fujita, T.; Watabe, Y.; Yamashita, S.; Tanabe, H.; Nojima, T.; Ichikawa, J. "Silver-Catalyzed Vinylic C–F Bond Activation: Synthesis of 2-Fluoroindoles from o-Sulfonamido-β,β-difluorostyrenes," Chem. Lett. 2016, 45, 964–966.
    
               
    (130)
Kinoshita, H.; Kizu, R.; Horikoshi, M.; Inoue, G.; Fujimoto, M.; Saito, M.; Ichikawa, J.; Hosomi, A.; Miura, K. "Regioselective Allylation of Carbon Electrophiles with Alkenyl­silanes under Dual Catalysis by Cationic Platinum (II) Species," Synthesis 2016, 48, 520–534.
      
               
    (129)
Fujita, T.; Sugiyama, K.; Sanada, S.; Ichitsuka, T.; Ichikawa, J. "Platform for Ring-Fluorinated Benzoheterole Derivatives: Palladium-Catalyzed Regioselective 1,1-Difluoroallylation and Heck Cyclization," Org. Lett. 2016, 18, 248–251.
      
      See also; "Palladium-Catalyzed Regioselective 1,1-Difluoroallylation and Heck Cyclization," Synfacts 2016, 12, 264.      
           
     

 

 2015  
    (128)
Aono, T.; Sasagawa, H.; Fuchibe, K.; Ichikawa, J. "Regioselective Synthesis of α,α-Difluorocyclopentanone Derivatives: Domino Nickel-Catalyzed Difluorocyclopropanation/Ring Expansion Sequence of Silyl Dienol Ethers," Org. Lett. 2015, 17, 5736–5739.
      
               
    (127)
Suzuki, N.; Fujita, T.; Ichikawa, J. "A Method for Synthesis of Dibenzo[g,p]Chrysenes: Domino Friedel–Crafts-Type Cyclization of Difluoroethenes Bearing Two Biaryl Groups," Org. Lett. 2015, 17, 4984–4987.
      
      See also; "Facile Method for the Synthesis of Dibenzo[g,p]chrysenes," Synfacts 2015, 11, 1266.      
               
    (126)
Fujita, T.; Arita, T.; Ichitsuka, T.; Ichikawa, J. "Catalytic Defluorinative [3 + 2] Cycloaddition of Trifluoromethylalkenes with Alkynes via Reduction of Nickel (II) IFluoride Species," Dalton Trans. 2015, 44, 19460–19463.
    
               
    (125)
Fuchibe, K.; Morikawa, T.; Ueda, R.; Okauchi, T.; Ichikawa, J. "Pinpoint-Fluorinated Phenanthrene Synthesis Based on C–F Bond Activation of Difluoroalkenes," J. Fluorine Chem. 2015, 179, 106–115.
      
               
    (124)
Ichitsuka, T.; Fujita, T.; Ichikawa, J. "Nickel-Catalyzed Allylic C( sp3)–F Bond Activation of Trifluoromethyl Groups via β-Fluorine Elimination: Synthesis of Difluoro-1,4-dienes," ACS Catalysis 2015, 5, 5947–5950.
      
               
    (123)
Fujita, T.; Watabe, Y.; Ichitsuka, T.; Ichikawa, J. "Ni-Catalyzed Synthesis of Fluoroarenes via [2 + 2 + 2] Cycloaddition Involving α-Fluorine Elimination," Chem. Eur. J. 2015, 21, 13225–13228.
    
               
    (122)
Fuchibe, K.; Morikawa, T.; Shigeno, K.; Fujita, T.; Ichikawa, J. "Pinpoint-Fluorinated Phenacenes: New Synthesis and Solubility Enhancement Strategies," Org. Lett. 2015, 17, 1126–1129.
      
               
    (121)
Fuchibe, K.; Bando, M.; Takayama, R.; Ichikawa, J. "Organocatalytic, Difluorocarbene-Based S-Difluoromethylation of Thiocarbonyl Compounds," J. Fluorine Chem. 2015, 171, 133–138.
    
               
    (120)
Kinoshita, H.; Kizu, R.; Inoue, G.; Fujimoto, M.; Saito, M.; Ichikawa, J.; Hosomi, A.; Miura, M. "Platinum-Catalyzed Allylation of Carbon Electrophiles with Alkenylsilanes," Tetrahedron Lett. 2015, 56, 713–716.
      
               
    (119)
Ichitsuka, T.; Takanohashi, T.; Fujita, T.; Ichikawa, J. "A Versatile Difluorovinylation Method: Cross-Coupling Reactions of the 2,2-Difluorovinylzinc–TMEDA Complex with Alkenyl, Alkynyl, Allyl, and Benzyl Halides," J. Fluorine Chem. 2015, 170, 29–37.
      
               
           
2014
  
    (118)
Fuchibe, K.; Mayumi, Y.; Yokota, M.; Aihara, H.; Ichikawa, J. "Indium(III)-Catalyzed Cationic Cyclization of 1,1-Difluoroallenes: Regioselective Synthesis of 1-Fluoronaphthalenes," Bull. Chem. Soc. Jpn. 2014, 87, 942–949.
     
     

See also (Cover Picture): Bull. Chem. Soc. Jpn. 2014, 87, 942–949.

     
               
    (117)
Ichitsuka, T.; Fujita, T.; Arita, T.; Ichikawa, J. "Double C–F Bond Activation through b-Fluorine Elimination: Nickel-Mediated [3+2] Cycloaddition of 2-Trifluoromethyl-1-alkenes with Alkynes," Angew. Chem. Int. Ed. 2014, 53, 7564–7568.
      
     

See also (Cover　Picture): Angew. Chem. Int. Ed. 2014, 53, 7371–7371.

      
               
    (116)
Fujita, T.; Ikeda, M.; Hattori, M.; Sakoda, K.; Ichikawa, J. "Nucleophilic 5-endo-trig Cyclization of 3,3-Difluoroallylic Metal Enolates and Enamides: Facile Synthesis of Ring-Fluorinated Dihydroheteroles," Synthesis 2014, 46, 1493-1415.
      
               
    (115)
Fujita, T.; Sanada, S.; Chiba, Y.; Sugiyama, K.; Ichikawa, J. "Two-Step Synthesis of Difluoromethyl-Substituted 2,3‑Dihydrobenzoheteroles," Org. Lett. 2014, 16, 1398-1401.
      
      See also; "Allylation–Radical Cyclization to Difluoromethylated Dihydrobenzoheteroles,"Synfacts 2014, 10, 576.      
               
           
2013
  
    (114)
Jinzaki, T.; Arakawa, M.; Kinoshita, H.; Ichikawa, J.; Miura, K. "Nucleophilic Addition of α‑(Dimethylsilyl)nitriles to Aldehydes and Ketones," Org. Lett. 2013, 15, 3750–3753.
      
               
    (113)
Ichikawa, J.; Tanabe, H.; Yoshida, S.; Kawai, T.; Shinjo, M.; Fujita, T. "A New Organic Two-Electron Oxidant: 9,10-Diaryl-9,10-dihydroanthracene-9,10-bis(ylium)," Chem. Asian J. 2013, 8, 2588–2591.
      
               
    (112)
Fujita, T.; Suzuki, N.; Ichitsuka, T.; Ichikawa, J. "Facile Synthesis of Unsymmetrical 1,1-Diaryl-2,2-difluoroethenes via Stepwise Coupling of 1,1-Dibromo-2,2-difluoroethenes," J. Fluorine Chem. 2013, 155, 97–101.
    
               
    (111)
Fuchibe, K.; Mayumi, Y.; Zhao, N.; Watanabe, S.; Yokota, M.; Ichikawa, J. "Domino Synthesis of Fluorine-Substituted PAHs: 1,1-Difluoroallenes as Synthetic Platforms," Angew. Chem. Int. Ed. 2013, 52, 7825–7828.
      
      See also; "Polycyclic Aromatic Hydrocarbons from 1,1-Difluoroallenes,"Synfacts 2013, 9, 1060.      
               
    (110)
Suzuki, T.; Tamaoki, H.; Katoono, R.; Fujiwara, K.; Ichikawa, J.; Fukushima, T. "Redox Switching of Conjugation Length Using 9,9,10,10-Tetraaryl-9,10-dihydrophenanthrene as an ON/OFF Unit: Preparation, X-Ray Structure, and Redox Properties of Perfluorobiphenyl Derivative and Its SnAr Reactions to π-Extended Analogues," Chem. Lett. 2013, 42, 703–705.
    
               
    (109)
Fujita, T.; Sakoda, K.; Ikeda, M.; Hattori, M.; Ichikawa, J. "Nucleophilic 5-endo-trig Cyclization of 3,3-Difluoroallylic Ketone Enolates: Synthesis of 5-Fluorinated 2-Alkylidene-2,3-dihydrofurans," Synlett 2013, 24, 57-60.
    
               
         
2012  
    (108)
Fuchibe, K.; Takahashi, M.; Ichikawa, J. "Substitutions of Two Fluorines in a Trifluoromethyl Group: Regioselective Synthesis of 3-Fluoropyrazoles," Angew. Chem. Int. Ed. 2012, 51, 12059–12062.
  
   
     
See also; "Synthesis of 3-Fluoropyrazoles from 2-Trifluoromethyl-1-alkenes," Synfacts 2013, 9, 21.
      
     
See also; "Substitutions of Two Fluorines in a Trifluoromethyl Group: Regioselective Synthesis of 3-Fluoropyrazoles," Cheminform 2013, 44, 99–100.
      
               
    (107)
Fuchibe, K.; Ueda, M.; Yokota, M.; Ichikawa, J. "γ-Selective Addition to 1,1-Difluoroallenes: Three–Component Coupling Leading to 2,2-Disubstituted 1,1-Difluoroalkenes," Chem. Lett. 2012, 41, 1619–1621.
    
     
See also; "γ-Selective Addition to 1,1-Difluoroallenes: Three-Component Coupling Leading to 2,2-Disubstituted 1,1-Difluoroalkenes," ChemInform 2013, 44, 78–78.
      
               
   
(106)
Kubota, T.; Ihara, M.; Katayama, S.; Nakai, H.; Ichikawa, J. "1,1-Difluoro-1-alkenes as New Electrolyte Additives for Lithium Ion Batteries," J. Power Sources 2012, 207, 141–149.
  
         
   
    (105)
Oh, K.; Fuchibe, K.; Yokota, M.; Ichikawa, J. "Facile Synthesis of Substituted 1,1-Difluoroallenes via Carbonyl Difluorovinylidenation," Synthesis 2012, 44, 857–861.
  
         
    (104)
Fuchibe, K.; Koseki, Y.; Aono, T.; Sasagawa, H.; Ichikawa, J. "NHC-Catalyzed Generation of Difluorocarbene and Its Application to Difluoromethylation of Oxygen Nucleophiles," J. Fluorine Chem. 2012, 133, 52–60.
  
               
            2011
    (103)
Fuchibe, K.; Koseki, Y.; Sasagawa, H.; Ichikawa, J. "NHC-Catalyzed Difluorocarbene Generation and Its Application to Aryl Difluoromethyl Ether Synthesis," Chem. Lett. 2011, 40, 1189–1191.
  
         
    (102)
Fujita, T.; Ichitsuka, T.; Fuchibe, K.; Ichikawa, J. "Facile Synthesis of β,β-Difluorostyrenes via the Negishi Coupling of Thermally Stable 2,2-Difluorovinyl Zinc-TMEDA Complex," Chem. Lett. 2011, 40, 986–988.
  
         
    (101)
Fuchibe, K.; Jyono, H.; Fujiwara, M.; Kudo, T.; Yokota, M.; Ichikawa, J. "Domino Friedel–Crafts-Type Cyclizations of Difluoroalkenes Promoted by the α-Cation-Stabilizing Effect of Fluorine: an Efficient Method for Synthesizing Angular PAHs," Chem. Eur. J. 2011, 17, 12175–12185.
  
         
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Nakanishi, W.; Matsuno, T.; Ichikawa, J.; Isobe, H. "Illusory Molecular Expression of “Penrose Stairs” by an Aromatic Hydrocarbon," Anegw. Chem. Int. Ed. 2011, 50, 6048–6051.
  
         
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Ichikawa, J. "5-endo-trig Cyclization of 1,1-Difluoro-1-alkenes: Synthesis of 3-Butyl-2-fluoro-1-tosylindole (1H-Indole, 3-Butyl-2-fluoro-1-[(4-methylphenyl)sulfonyl]-)," Org. Synth. 2011, 88, 162–167.
  
         
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Oh, K.; Fuchibe, K.; Ichikawa, J. "Synthesis of 1,1-Difluoroallenes from Commercially Available 1,1,1-Trifluoro-2-iodoethane," Synthesis 2011, 881–886.
  
     
See also; "Greener 1,1-Difluoroallenes," Synfacts 2011, 609.
  
         
   
         
2010  
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Ichikawa, J. "Synthetic Methods for Heterocycles and Carbocycles Bearing Fluorinated One-Carbon Units (=CF2, CHF2, or CF3): Intramoelcular Reaction of 2-Trifluoromethyl-1-alkenes," J. Synth. Org. Chem., Jpn. 2010, 68, 1175–1184. [Account]
  
         
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Nadano, R.; Fuchibe, K.; Ikeda, M.; Takahashi, H.; Ichikawa, J. "Rapid and Slow Generation of 1-Trifluoromethylvinyllithium: Syntheses and Applications of CF3-Containing Allylic Alcohols, Allylic Amines, and Vinyl Ketones," Chem. Asian J. 2010, 5, 1875–1883.
  
         
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Miura, K.; Yamamoto, K.; Yamanobe, A.; Ito, K.; Kinoshita, H.; Ichikawa, J.; Hosomi, A. "Indium(III)-catalyzed Coupling between Alkynes and Aldehydes to α,β-Unsaturated Ketones," Chem. Lett. 2010, 39, 766–767.
  
         
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Tanabe, H.; Ichikawa, J. "Transition-Metal-Catalyzed Electrophilic Activation of 1,1-Difluoro-1-alkenes: Oxindole Synthesis via Intramolecular Amination," Chem. Lett. 2010, 39, 248–249.
  
         
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Tanabe, H.; Kawai, T.; Saitoh, T.; Ichikawa, J. "Oxidative Arylation Mediated by Naphthalene-1,8-diylbis(diphenylmethylium): Synthetic Route to Triarylsulfonium Salts," Chem. Lett. 2010, 39, 56-57.
  
         
         
2009  
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Miura, K.; Izumi, H.; Kinoshita, H.; Ichikawa, J.; Hosomi, A. "Platinum(II)-Catalyzed Acetal–Ene Reaction: Easy Access to Homoallylic Ethers," Chem. Lett. 2009, 38, 1204-1205.
  
         
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Miura, K.; Ebine, M.; Ootsuka, K.; Ichikawa, J.; Hosomi, A. "Efficient Alkenation of Aldehydes and Ketones to α,β-Unsaturated Esters Using α,α-Bis(dimethylsilyl)-substituted Esters," Chem. Lett. 2009, 38, 832-833.
  
         
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Miura, K.; Inoue, G.; Sasagawa, H.; Kinoshita, H.; Ichikawa, J.; Hosomi, A. "Platinum-Catalyzed Nucleophilic Addition of Vinylsilanes at the β-Position," Org. Lett. 2009, 11, 5066-5069.
  
         
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Isobe, H.; Hitosugi, S.; Matsuno, T.; Iwamoto, T.; Ichikawa, J. "Concise Synthesis of Halogenated Chrysenes ([4]Phenacenes) That Favor π-Stack Packing in Single Crystals," Org. Lett. 2009, 11, 4026–4028.
  
      See also; "Synthesis of Chrysenes through an Unexpected Skeletal Rearrangement," Synfacts 2009, 1211.  
         
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Yokota, M.; Fuchibe, K.; Ueda, M.; Mayumi, Y.; Ichikawa, J. "Facile Synthesis of 1,1-Difluoroallenes via the Difluorovinylidenation of Aldehydes and Ketones," Org. Lett. 2009, 11, 3994-3997.
  
         
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Ichikawa, J.; Ikeda, M.; Hattori, M. "Synthesis of Isochromanes and Isothiochromanes Bearing Fluorinated One-Carbon Units via Intramolecular Cyclizations of Ortho-Substituted α-(Trifluoromethyl)styrenes," Heterocycles 2009, 77, 1285-1296.

  
         
   
         
2008  
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Ichikawa, J.; Yokota, M.; Kudo, T.; Umezaki, S. "Efficient Helicene Synthesis: Friedel-Crafts-Type Cyclization of 1,1-Difluoro-1-alkenes," Angew. Chem. Int. Ed. 2008, 47, 4870-4873.
 
     

See also; "Domino Friedel–Crafts Cyclization for Helicene Synthesis," Synfacts 2008, 936.

  
         
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Miura, K.; Horiike, M.; Inoue, G.; Ichikawa, J.; Hosomi, A. "Platinum(II)-Catalyzed Annulation of 5-Methyl-5-hexen-1-ols with Aldehydes," Chem. Lett. 2008, 37, 270-271.
  
         
         
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Miura, K.; Tomita, M.; Ichikawa, J.; Hosomi, A. "Indium(III) Acetate-Catalyzed Intermolecular Radical Addition of Organic Iodides to Electron-Deficient Alkenes," Org. Lett. 2008, 10, 133-136.
  
         
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Ichikawa, J.; Iwai, Y.; Nadano, R.; Mori, T.; Ikeda, M. J. "A New Class of Substrates for Nucleophilic 5-endo-trig Cyclization, 2-Trifluoromethyl-1-alkenes: Synthesis of Five-Membered Hetero- and Carbocycles That Bear Fluorinated One-Carbon Units," Chem. Asian J. 2008, 3, 393-406.
  
         
2007
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Ichikawa, J.; Wada, Y.; Kuroki, H.; Mihara, J.; Nadano, R. "Intramolecular Cyclization of β,β-Difluorostyrenes Bearing an Iminomethyl or a Diazenyl Group at the Ortho Position: Synthesis of 3-Fluorinated Isoquinoline and Cinnoline Derivatives,"Org. Biomol. Chem. 2007, 5, 3956-3962.
  
         
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Yokota, M.; Fujita, D.; Ichikawa, J. "Activation of 1,1-Difluoro-1-alkenes with a Transition-Metal Complex: Platinum(II)-Catalyzed Friedel-Crafts-Type Cyclization of 4,4-(Difluorohomoallyl)arenes," Org. Lett. 2007, 9, 4639-4642.
  
         
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Ichikawa, J.; Lapointe, G.; Iwai, Y. "Nucleophilic 5-endo-trig Cyclizations of N-Homoallylic Sulfonamides: A Facile Method for the Construction of Pyrrolidine Rings," Chem. Commun. 2007, 2698-2700.
  
         
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Mori, T.; Ichikawa, J. "Radical 6-endo-trig Cyclization of β,β-Difluoro-o-isocyanostyrenes: A Facile Synthesis of 3-Fluoroquinolines and Their Application to the Synthesis of 11-Alkylated Cryptolepines," Synlett 2007, 1169-1171.
  
         
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Nadano, R.; Ichikawa, J. "A Facile Synthesis of N-[2-(Trifluoromethyl)allyl]amides and Their Transformation into Angularly Trifluoromethylated Bicyclic Cyclopentenones," Chem. Lett. 2007, 36, 22-23.
  
               
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Ichikawa, J. "Construction of Fluorinated Heterocycles: Intramolecular Substitution and Addition of Fluoro Alkenes," Chim. Oggi 2007, 25, 54–57. [Account]