A NEW ROUTE TO OLEFINS FROM DITHIOCARBAMATES VIA<i>S</i>-ALKYLATION-ELIMINATION PROCESS. APPLICATION TO A STEREOSELECTIVE SYNTHESIS OF NATURALLY-OCCURRING TRIENES
作者:Toshio Hayashi、Akio Sakurai、Takeshi Oishi
DOI:10.1246/cl.1977.1483
日期:1977.12.5
Alkyl 1-pyrrolidinecarbodithioates, when treated with an excess of methyl iodide in hexamethylphosphoric triamide, afforded trans-olefins stereoselectively in high yields. Naturally-occurring 2,4,6- and 1,3,5-undecatrienes and allo-ocimene were prepared.
1-吡咯烷二硫代酸烷基酯在六甲基三磷酰胺中用过量的碘化甲烷处理后,可以高产率立体选择性地得到反式烯烃。制备出了天然存在的 2,4,6- 和 1,3,5- 十一碳三烯以及烯碳烯。