Direct construction of quaternary carbon center utilizing an allylsamarium bromide reagent
作者:Zhifang Li、Yongmin Zhang
DOI:10.1016/s0040-4020(02)00491-x
日期:2002.6
Direct geminal diallylation of lactones, lactams and acyclic amides containing a N–H bond has been achieved in the presence of allylsamarium bromide. By applying this method, quaternary carbons have been constructed, and 2,2-diallylated cyclic ethers, 2,2-diallylated nitrogen heterocycles and diallylated amides were synthesized in moderate to good yields under mild conditions.
在烯丙基溴化presence的存在下,内酯,内酰胺和含有N–H键的无环酰胺的直接双键二烯丙基化反应已经实现。通过应用该方法,已经构建了季碳,并且在温和的条件下以中等至良好的收率合成了2,2-二烯丙基化的环醚,2,2-二烯丙基化的氮杂环和二烯丙基化的酰胺。