作者:Mahesh S. Majik、Peruninakulath S. Parameswaran、Santosh G. Tilve
DOI:10.1021/jo900196t
日期:2009.5.1
example of a tandem Wittig−intramolecular ene reaction approach and its application toward the synthesis of kainic acid is reported. The synthetic pathway involves conversion of prenyl bromide into phosphorane 3, followed by one-pot Wittig olefination and an ene reaction with glyoxalic acid to give the cis fused pyrrolidine skeleton of kainic acid.
报道了串联的Wittig-分子内烯反应方法的第一个实例及其在海藻酸合成中的应用。合成途径包括将异戊二烯基溴化物转化为膦烷3,然后进行一锅Wittig烯烃化反应,并与乙二醛酸进行烯键反应,得到海藻酸的顺式稠合吡咯烷骨架。