Chemische Berichte

Regioselective synthesis of substituted bicyclo [3.2. 1] oct??3??ene??2, 8??diones via double carbonylation of 1, 3??cyclohexadienes

P Eilbracht, R Jelitte, P Trabold

Index: Eilbracht, Peter; Jelitte, Ruediger; Trabold, Peter Chemische Berichte, 1986 , vol. 119, # 1 p. 169 - 181

Full Text: HTML

Citation Number: 13

Abstract

Abstract Double carbonylation of 1, 3-cyclohexadienes 1 is applied to the synthesis of substituted bicyclo [3.2. 1] oct-3-ene-2, 8-diones 4. The Lewis acid mediated ring enlargement of substituted cyclohexadiene complexes 2 produces the cycloheptanone alkyl allyl complexes 3 with high regioselectivity. Substituted bicyclic diketones 4 are obtained in high yields by treating the complexes 3 with carbon monoxide under pressure or by ...