An Exo-Selective Diels-Alder Reaction of a Bimetallic Carbene Complex: A Case of Steric Control?
作者:Michal Sabat、Kelly A. Reynolds、M. G. Finn
DOI:10.1021/om00017a076
日期:1994.5
The alpha,beta-unsaturated bimetallic Fischer carbene complex 1, (CO)5WC(OTiCP2Cl)(C(CH3)=CH2), undergoes reaction with cyclopentadiene to give predominantly the exo Diels-Alder adduct in high yield; X-ray crystal structures and molecular mechanics calculations for both reactant and product complexes suggest that the reaction may be controlled by steric factors.