General, Stereoselective Synthesis of (<i>Z</i>)-β,γ-Unsaturated Nitriles Promoted by Samarium Diiodide
作者:José M. Concellón、Humberto Rodríguez-Solla、Carmen Simal、David Santos、Nieves R. Paz
DOI:10.1021/ol801752m
日期:2008.10.16
A method to obtain (Z)-beta,gamma-unsaturated nitriles in high or good yields and with moderate or high stereoselectivity is described. The products were achieved through the photoinduced metalation of 3-acetoxy-4-chloronitriles with Sml(2). The starting compounds were readily prepared, and a mechanism is proposed to explain this stereoselective beta-elimination reaction.