van Leusen,A.M.; Strating,J., Recueil des Travaux Chimiques des Pays-Bas, 1965, vol. 84, p. 151 - 164
作者:van Leusen,A.M.、Strating,J.
DOI:——
日期:——
Improved preparation of tosyldiazomethane
作者:C Plessis、D Uguen、A De Cian、J Fischer
DOI:10.1016/s0040-4039(00)00763-2
日期:2000.7
Treatment of the carbamate 2a by i-amyl nitrite and TMSCl in presence of a reduced amount of pyridine, followed by decomposition of the resulting nitroso derivative 3a with activated alumina afforded in high yield the pure, crystalline, diazosulfone la, a process which could be extended to the preparation of the parent diazosulfone Ib. (C) 2000 Elsevier Science Ltd. All rights reserved.
Theory-Guided Discovery of Unique Chemical Transformations of Cyclopropenes
作者:Robin A. Weatherhead-Kloster、E. J. Corey
DOI:10.1021/ol052752+
日期:2006.1.1
[reaction: see text] Chiral 2-cyclopropenyl-4-tolyl sulfones, available by the [2 + 1]-cycloaddition of tosyldiazomethane to acetylenes under catalysis by the Rh(II) complex 1, provide a number of unusual transformations and useful chiral products. This chemistry is dominated by the unusual strain and reactivity of the cyclopropene ring system.