Synthesis of Fulvene Vinyl Ethers by Gold Catalysis
Gold-catalyzed cyclization of 1,5-diynes with ketones as reagents and solvent provides diversely substituted vinyl ethers under mild conditions. The regioselectivity of such gold-catalyzed cyclizations is usually controlled by the scaffold of the diyne. H
Ahrens, Alexander,Dreuw, Andreas,Hashmi, A. Stephen K.,Hoffmann, Marvin,Lustosa, Danilo M.,Pourkaveh, Raheleh,Rominger, Frank,Rudolph, Matthias,Schwarz, Julia
supporting information
(2020/04/20)
Dibenzopentalenes from B(C6F5)3-induced cyclization reactions of 1,2-bis(phenylethynyl)benzenes
'Lene' and mean: The strong Lewis acid B(C6F5) 3 efficiently converts some bis(arylethynyl)benzenes into dibenzopentalenes through a series of Lewis acid induced cyclization reactions at room temperature. Thus the reaction has the potential to be useful in the synthesis of substituted dibenzopentalene derivatives which are difficult to make by conventional means. Copyright
Chen, Chao,Harhausen, Marcel,Liedtke, Rene,Bussmann, Kathrin,Fukazawa, Aiko,Yamaguchi, Shigehiro,Petersen, Jeffrey L.,Daniliuc, Constantin G.,Froehlich, Roland,Kehr, Gerald,Erker, Gerhard
supporting information
p. 5992 - 5996
(2013/07/19)
5-Exo-dig radical cyclization of enediynes: The first synthesis of tin-substituted benzofulvenes
(Equation Presented) Bu3Sn-mediated 5-exo-dig radical cyclization of diaryl enediynes provides a mild and efficient approach to tin-substituted fulvenes. Further synthetic opportunities opened by this process and general factors responsible for
Kovalenko, Serguei V.,Peabody, Scott,Manoharan, Mariappan,Clark, Ronald J.,Alabugin, Igor V.
p. 2457 - 2460
(2007/10/03)
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