Tandem-Directed Regioselective Hydroformylation/β-Elimination: A Practical Method for the Synthesis of Enals
作者:Bernhard Breit、Achim Bruch、Antje Gebert
DOI:10.1055/s-2008-1067140
日期:2008.7
A practical synthesis of α,β-unsaturated aldehydes by a tandem-directed hydroformylation/β -elimination process of allylic o-DPPB esters is reported. The o-DPPB group served as an effective controller for regioselectivity of the hydroformylation towards the desired aldolate isomer, and was subsequently eliminated in situ by mild standard bases. The reaction is rather general for the preparation of