Tetrahedron

PtCl 2-mediated cycloisomerization of unsaturated propargylic carboxylates

S Anjum, J Marco-Contelles

Index: Anjum, Shazia; Marco-Contelles, Jose Tetrahedron, 2005 , vol. 61, # 20 p. 4793 - 4803

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Citation Number: 49

Abstract

The PtCl2-mediated cycloisomerization of unsaturated propargylic carboxylates yields differently functionalized bicyclo [4.1. 0] heptane enol esters from moderate to good yield, in a very diastereoselective manner. We have prepared and submitted to PtCl2-catalyzed cycloisomerization a series of differently substituted hept-1-en-6-ynes with different O-acyl (acetyl, trichloroacetyl, 3, 4, 5-trimethoxybenzoyl, etc.) protecting groups at propargylic ...

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