STEREOSELECTIVE AND STEREOSPECIFIC SYNTHESIS OF 2-ALKYLIDENE-3-METHYLENE SUCCINIC ACID DIMETHYL ESTERS
作者:F. Béji、J. Lebreton、J. Villiéras、H. Amri
DOI:10.1081/scc-120014031
日期:2002.1
1-Alkyl-2,3-dimethoxycarbonyl-1,3-butadienes 4 were synthesized via two different routes. In the first route, the Wittig-Horner reaction of the readily available phosphonate 2 with various aldehydes yielded the corresponding 1,3-dienes 4 with a good E stereoselectivity. The second route, using alpha-(bromomethyl) fumarate 1 under basic conditions, provides stereospecifically pure (E)-1,3-dienes 4.