作者:Tatsushi Imahori、Chieko Hori、Yoshinori Kondo
DOI:10.1002/adsc.200404076
日期:2004.8
The addition of O- and N-nucleophiles to alkynes catalyzed by a phosphazene base, t-Bu-P4 base, was investigated. Alkynes were easily transformed to enol ethers and enamines in DMSO by the addition of nucleophiles. When phenylacetylene was reacted with diisopropylamine, a unique head-to-head dimerization of phenylacetylene was observed to give the enyne derivative. Terminal proton of phenylacetylene
研究了将O-和N-亲核试剂添加到
磷腈碱(t -Bu-P4碱)催化的
炔烃中。通过添加亲核试剂,
炔烃很容易在
DMSO中转化为烯醇醚和烯胺。当
苯乙炔与
二异丙基胺反应时,观察到
苯乙炔独特的头对头二聚反应,得到烯炔衍
生物。
苯乙炔的末端质子也被t -Bu-P4碱催化活化,生成
乙炔根阴离子,该
乙炔根阴离子与羰基化合物反应生成苯
丙炔醇衍
生物。