Pyrrole-2-dithiocarboxylates: Synthesis of 2-(1-Alkylthio-2-cyanoethenyl)pyrroles
作者:Lubov N. Sobenina、Albina I. Mikhaleva、Maria P. Sergeeva、Olga V. Petrova、Tamara N. Aksamentova、Olga B. Kozyreva、Darya-S.D. Toryashinova、Boris A. Trofimov
DOI:10.1016/0040-4020(95)00149-3
日期:1995.4
2-(1-Alkylthio-2-cyanoethenyl)pyrroles were synthesized in good to high yields by reaction of pyrrole-2-dithiocarboxylates with active methylene nitriles in a KOH-DMSO medium. The condensation of 4,5,6,7-tetrahydroindole with cyanoacetate also leads to 1-ethylthio-2-cyano-4,5,6,7-tetrahydrocyclohexa-[c]-3H-pyrrolizin-3-one in 61% yield. The effect of substituent on the reaction course has been studied
通过在KOH-DMSO介质中吡咯-2-二硫代羧酸酯与活性亚甲基腈的反应,以高至高收率合成了2-(1-烷硫基-2-氰基乙烯基)吡咯。4,5,6,7-四氢吲哚与氰基乙酸酯的缩合反应还可以产生61%收率的1-ethylthio-2-cyano-4,5,6,7-tetrahydrocyclohexahexa- [c] -3H-pyrrolizin-3-one 。已经研究了取代基对反应过程的影响。介绍了产品的偶极矩和光谱特性。