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Rhodium(I)-catalyzed [3+2] intramolecular cycloaddition of alkylidenecyclopropane–propargylic esters

Author:
Zhang, Di-Han, Shi, Min
Source:
Tetrahedron letters 2012 v.53 no.5 pp. 487-490
ISSN:
0040-4039
Subject:
chemical reactions, chemical structure, esters, rhodium
Abstract:
An interesting rhodium(I)-catalyzed [3+2] intramolecular cycloaddition of alkylidenecyclopropanes 1 containing propargylic esters has been described in this context. A variety of bicyclo[3.3.0]octene derivatives were obtained in moderate to good yields under mild conditions. The alkylidenecyclopropane-enynes 2 could be also converted to the corresponding cycloadducts 3 in good yields.
Agid:
1098845