Organic letters

Rh (I)-catalyzed intramolecular allenic Pauson-Khand reaction: Construction of a bicyclo [5.3. 0] dec-1, 7-dien-9-one skeleton

C Mukai, I Nomura, K Yamanishi, M Hanaoka

Index: Mukai, Chisato; Nomura, Izumi; Yamanishi, Kei; Hanaoka, Miyoji Organic Letters, 2002 , vol. 4, # 10 p. 1755 - 1758

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Citation Number: 95

Abstract

1-Phenylsulfonylallenes possessing a hexynyl appendage in refluxing toluene in the presence of catalytic amount of rhodium (I) catalyst under a carbon monoxide atmosphere underwent regioselective formal [2+ 2+ 1]-cycloaddition to produce the corresponding bicyclo [5.3. 0] dec-1, 7-dien-9-one derivatives in acceptable yields.