作者:L. Crombie、P. Hemesley、Gerald Pattenden
DOI:10.1039/j39690001016
日期:——
A stereospecific five-stage synthesis of (±)-cis-pyrethrolone is described, involving cis-octa-1,3-dien-7-one as the key intermediate. The ethylene acetal of this ketone was made by a Wittig reaction, under salt-free condiditions, with vaporised acraldehyde. The overall yield for the synthesis was 21%, and it provides highly pure (pm;)-cis-pyrethrolone for the first time. The material is spectrally
描述了(±)-顺式-吡咯烷酮的立体有择的五阶段合成,涉及顺式-octa-1,3-dien-7-one作为关键中间体。该酮的乙缩醛是通过Wittig反应在无盐条件下与汽化的丙烯醛反应制得的。合成的总产率为21%,并且它首次提供了高纯度的(pm;)-顺式-吡咯烷酮。该物质与自然(+)-吡咯烷酮样品在光谱上相同。