Preparation of carbocycles via base-catalyzed endo-mode cyclization of allenes

C Mukai, N Kuroda, R Ukon, R Itoh

Index: Mukai, Chisato; Kuroda, Norikazu; Ukon, Rie; Itoh, Rumiko Journal of Organic Chemistry, 2005 , vol. 70, # 16 p. 6282 - 6290

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Citation Number: 14

Abstract

A new and reliable procedure for constructing five-to seven-membered carbocycles via an endo-mode ring-closing reaction of 1-phenylsulfonylallenes with a substituent that has a terminal active methine moiety at the C1-position has been developed. Trisubstituted 1- phenylsulfonylallenes underwent a similar endo-mode ring-closing reaction to produce the corresponding five-to seven-membered carbocycles, while the formation of six-and seven- ...

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