A CONVENIENT METHOD FOR THE SYNTHESIS OF 7-OXO-(<i>E</i>)-3-ALKENOIC ACIDS BY THE REACTION OF β-VINYL-β-PROPIOLACTONE WITH METALLATED<i>N</i>,<i>N</i>-DIMETHYLHYDRAZONES
作者:Tamotsu Fujisawa、Masashi Takeuchi、Toshio Sato
DOI:10.1246/cl.1982.1521
日期:1982.10.5
β-Vinyl-β-propiolactone reacts regio- and stereoselectively with an enolate equivalent such as cuprate derivatives of N,N-dimethylhydrazones and their bromomagnesium derivatives in the presence of a copper(I) catalyst to afford 7-oxo-(E)-3-alkenoic acids in high yields.
β-乙烯基-β-丙内酯在铜(I)催化剂的存在下,区域选择性和立体选择性地与烯醇等价物(例如N,N-二甲基脲的铜衍生物及其溴镁衍生物)反应,以高产率生成7-氧代-(E)-3-烯酸。