Furan Ring Opening-Pyrrole Ring Closure: A New Route to Pyrrolo[1,2-d][1,4]benzodiazepin-6-ones
作者:Alexander Butin、Tatyana Nevolina、Vitaly Shcherbinin、Olga Serdyuk
DOI:10.1055/s-0030-1260204
日期:2011.11
on the acid-catalyzed recyclization of N-[2-(5-alkyl-2-furyl)phenyl]-2-aminoacetamides and permits the formation of both diazepine and pyrrole rings in one pot. The reaction proceeds via furan ring opening to give the diketone moiety followed by consecutive reactions of the free amino group with both carbonyl functions. furans - ring opening - ring closure - fused-ring system - pyrrolo[1,2-d][1,4]benzodiazepines
描述了一种合成吡咯并[1,2- d ] [1,4]苯并二氮杂的新方法。该方法基于N- [2-(5-烷基-2-呋喃基)苯基] -2-氨基乙酰胺的酸催化再循环,并允许在一锅中同时形成二氮杂和吡咯环。该反应通过呋喃开环进行以得到二酮部分,随后是具有两个羰基官能团的游离氨基的连续反应。 呋喃-开环-闭环-稠环系统-吡咯并[1,2- d ] [1,4]苯并二氮杂卓-Paal-Knorr反应