Synthesis of cis-fused carbo-bicycles by domino enyne cross-metathesis/intramolecular Diels-Alder Reaction

Org Lett. 2005 May 12;7(10):2015-8. doi: 10.1021/ol050508c.

Abstract

A sequential combination of Ru-catalyzed enyne cross-metathesis (EYCM) and intramolecular Diels-Alder reaction (IMDA) is described. Different terminal alkynes and alpha,omega-dienes obtained by a Baylis-Hillman reaction were transformed into substituted cis-hexahydro-1H-indenes and cis-hexahydro-2H-naphthalin-1-ones.