catalyst directing group (CDG) allows an efficientsubstrate-directeddiastereoselectivehydroformylation of acyclic homomethallylic alcohols 5, making use of 1,3-asymmetric induction. The corresponding anti-aldehydes 10 were obtained as the major diastereomer in all cases, with diastereomer ratios of ca. 91:9 (anti:syn). Supporting evidence could be obtained for the ability of the o-DPPB group to act as a
Substrate directed diastereoselective hydroformylation of acyclic homomethallylic alcohols
作者:Bernhard Breit
DOI:10.1039/a608612h
日期:——
Diastereoselective hydroformylation of acyclic homomethallylic alcohols
with the aid of a catalyst directing group is achieved and the
stereochemical outcome of this reaction is rationalized by analysing the
preferred substrate conformation in solution.