作者:Christine Roubaud、Patrice Vanelle、José Maldonado、Michel P. Crozet
DOI:10.1016/0040-4020(95)00539-k
日期:1995.8
new heterocyclic reductive alkylating agent, 2-chloromethyl-3-nitroimidazo[1,2-a] pyrimidine, is synthesized for the first time and shown to react under phase-tranfer catalysis conditions with 2-nitropropane anion to give good yield of the C-alkylated derivative. Elimination of nitrous acid allows to obtain a new class of imidazo[1,2-a]pyrimidine derivatives bearing a trisubstituted ethylenic bond in
首次合成了一种新型的杂环还原性烷基化剂2-氯甲基-3-硝基咪唑并[1,2- a ]嘧啶,并在相转移催化条件下与2-硝基丙烷阴离子反应,得到了良好的收率。 C-烷基化的衍生物。消除亚硝酸允许获得新的一类在2位带有三取代的烯键的咪唑并[1,2- a ]嘧啶衍生物。通过经典的双氧,对二硝基苯或TEMPO抑制实验证实了C烷基化的S RN 1机理。