Total Synthesis of the Putative Structure of Nagelamide D
作者:Manojkumar R. Bhandari、Rasapalli Sivappa、Carl J. Lovely
DOI:10.1021/ol9001762
日期:2009.4.2
A totalsynthesis of the putativestructure of nagelamide D from imidazole is described. A Stille cross-coupling is used to construct the bis imidazole skeleton, and the pyrrolecarboxamides are introduced via a double Mitsunobu reaction using a pyrrolehydantoin derivative. Discrepancies between the published spectroscopic data and that reported in the literature cast doubts either on the assigned structure
描述了从咪唑全合成 nagelamide D 的推定结构。Stille 交叉偶联用于构建双咪唑骨架,并通过使用吡咯乙内酰脲衍生物的双光信反应引入吡咯甲酰胺。已发表的光谱数据与文献中报告的数据之间的差异使人们对指定的结构或报告的数据产生怀疑。
Synthesis of fused bicyclic imidazoles by ring-closing metathesis
作者:Yingzhong Chen、H.V.Rasika Dias、Carl J. Lovely
DOI:10.1016/s0040-4039(02)02864-2
日期:2003.2
The preparation of a number of dienylimidazole via chemoselective metal-halogen exchange and their utility in ring-closing metathesis is described. Essentially all regioisomeric permutations participate in metathesis with the notable exception of 4-vinyl-5-allylimidazoles, provided that the imidazole N3 atom is protonated. (C) 2003 Elsevier Science Ltd. All rights reserved.
Ring Closing Metathesis Reactions of Imidazole Derivatives
作者:Carl J. Lovely、Yingzhong Chen、E. Vindana Ekanayake