Preparation of Highly Substituted 4-Aminopyridones via the Reaction of 2-Methylene Dihydrobenzimidazole with Vinyl Isocyanates
作者:James H. Rigby、Chee-Seng Lee
DOI:10.1021/ol034263k
日期:2003.4.1
[reaction: see text] The rapid construction of highly substituted 4-aminopyridones was achieved employing an efficient cyclization between various vinyl isocyanates and 2-methylene dihydrobenzimidazole.
Bis(alkylthio)carbenes as Novel Reagents for Organic Synthesis
作者:James H. Rigby、Stephane Laurent、Weitong Dong、M.Diana Danca
DOI:10.1016/s0040-4020(00)00855-3
日期:2000.12
Bis(alkylthio)carbenes have been shown to be a useful class of reactive intermediates for applications to organic synthesis. Substituted hydroindolanes, isatins and hydroquinolones can be prepared by the addition of these carbenes to vinyl isocyanates. (C) 2000 Elsevier Science Ltd. All rights reserved.
[4 + 1] Cycloaddition of N-Heterocyclic Carbenes with Vinyl Isocyanates
作者:James H. Rigby、Zhengqiang Wang
DOI:10.1021/ol026927g
日期:2002.11.1
graphicN-Heterocyclic carbenes have been found to undergo [4 + 1] cycloaddition with various vinyl isocyanates to afford functionalized hydroindolone products.