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Title
Japanese:Enantioselective Synthesis of Planar-Chiral Carba-Paracyclophanes: Rhodium-Catalyzed [2+2+2] Cycloaddition of Cyclic Diynes with Terminal Monoynes. 
English:Enantioselective Synthesis of Planar-Chiral Carba-Paracyclophanes: Rhodium-Catalyzed [2+2+2] Cycloaddition of Cyclic Diynes with Terminal Monoynes. 
Author
Japanese: Tatsuya Araki, Keiichi Noguchi, Ken. Tanaka.  
English: Tatsuya Araki, Keiichi Noguchi, Ken. Tanaka.  
Language English 
Journal/Book name
Japanese:Angewandte Chemie, International Edition 
English:Angewandte Chemie, International Edition 
Volume, Number, Page Vol. 52    No. 21    pp. 5617-5621
Published date 2013 
Publisher
Japanese:Wiley-VCH Verlag GmbH & Co. KGaA 
English:Wiley-VCH Verlag GmbH & Co. KGaA 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
DOI https://doi.org/10.1002/anie.201300696
Abstract The high-yielding and highly enantioselective synthesis of carba[10]-[12]paracyclophanes I [X = (CH2)n; n = 7-9; R1 = Ts, 2-O2NC6H4SO2; R2 = MeO2C, HOCH2, n-Bu, MeCH(OH), etc.] has been achieved with up to 93% ee by the cationic rhodium(I)/(S,S)-bdpp-catalyzed [2 + 2 + 2] cycloaddn. of cyclic diynes II and terminal alkynes R2C竕｡CH under high substrate concns. [bdpp = 2,4-bis(diphenylphosphino)pentane]. [on SciFinder(R)]

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