A novel class of azatricyclononanes: pentasubstituted cyclopropanes from an uncatalysed reaction
作者:Lawrence Harris、Martin Gilpin、Amber L. Thompson、Andrew R. Cowley、Mark G. Moloney
DOI:10.1016/j.tetasy.2009.02.037
日期:2009.5
The direct and versatile stereoselective synthesis of a novel class of cyclopropyl derivatives of pyroglutamic acid is reported, using substituted diaryldiazo compounds. The course of the reaction has been investigated, and yields of substituted fluorenylcyclopropanes are greater than those of diphenylmethyl-cyclopropane analogues. (C) 2009 Elsevier Ltd. All rights reserved.
Substituted diaryldiazomethanes and diazofluorenes: structure, reactivity and stability
作者:Philip J. Davis、Lawrence Harris、Aman Karim、Amber L. Thompson、Martin Gilpin、Mark G. Moloney、Matthew J. Pound、Claire Thompson
DOI:10.1016/j.tetlet.2011.01.116
日期:2011.4
The synthesis of several substituted diaryldiazomethanes and diazofluorenes, and an assessment of their structure, reactivity and stability, is reported.
报道了几种取代的二芳基重氮甲烷和重氮芴的合成,以及它们的结构,反应性和稳定性的评估。
Uncatalysed diaryldiazo cyclopropanations on bicyclic lactams: access to annulated prolines
作者:Lawrence Harris、Martin Gilpin、Amber L. Thompson、Andrew R. Cowley、Mark G. Moloney
DOI:10.1039/c5ob00648a
日期:——
cycloaddition of substituted diaryldiazo compounds onto bicyclic unsaturated lactams derived from pyroglutamic acid efficiently leads to highly functionalised azatricyclononanes. The products are readily elaborated to deprotected pyroglutamate derivatives, providing rapidaccess to conformationally constrained amino acids and their analogues. Preliminary assessment of antibacterial activity against