138336-35-3Relevant academic research and scientific papers
A New Way toward Z α,β Unsaturated Esters: A Pyrethroid Application
Babin, Didier,Demassey, Jacques,Demoute, Jean Pierre,Dutheil, Phillipe,Terrie, Isabelle,Tessier, Jean
, p. 584 - 589 (2007/10/02)
Use of the stereospecific condensation of β carbalkoxysulfones with aldehydes, followed by the stereospecific reduction of the afforded sulfonyl acrylate with sodium dithionite allows us to propose this method as a new way to prepare Z α,β unsaturated esters.Steric hindrance seems to be the reason for the selectivity of the reduction and the mechanism was proved, by X-ray of an intermediate, to be a cis Michael addition of HSO2-, followed by an anti elimination of SO2 and the sulfinate group.This method discovered in the pyrethroid series for the synthesis of acrinathrin 1 could have general application.
