The invention of radical reactions. Part XVIII. Decarboxylative radical addition to arsenic, antimony, and bismuth phenylsulphides - a novel synthesis of nor-alcohols from carboxylic acids
作者:Derek H.R. Barton、Dominique Bridon、Samir Z. Zard
DOI:10.1016/s0040-4020(01)80092-2
日期:1989.1
Carbon centered radicals obtained by decarboxylative transformation of suitable thiohydroxamate esters react with group Va trisphenyl-sulphides to give intermediates of general formula R-M(SPh)2 (M = As, Sb, Bi). These react spontaneously with air to give the corresponding alcohols. This procedure is especially useful in the case where M=Sb. It is thus sufficient to stir the thiohydroxamate ester with
New decarboxylative chalcogenation of aliphatic and alicyclic carboxylic acids.
作者:Derek H.R. Barton、Dominique Bridon、Samir Z. Zard
DOI:10.1016/s0040-4039(01)81684-1
日期:1984.1
Thiohydroxamic-carboxylic mixed anhydrides can be decarboxylated in the presence of diaryl disulphides, diselenides and ditellurides to give sulphides, selenides and tellurides respectively in reasonable to good yield.
Radicals formed from the esters of thiohydroxamic acids readily add to electron deficient olefins to give adducts of potential synthetic value in variable yield. In certain cases the added sulphur function is easily eliminated with reformation of olefin.
A practical decarboxylative hydroxylation of carboxylic acids
作者:Derek H.R. Barton、Stéphane D. Géro、Pascale Holliday、Béatrice Quiclet-Sire、Samir Z. Zard
DOI:10.1016/s0040-4020(98)00337-8
日期:1998.6
Irradiation of esters of N-hydroxy-2-thiazolinethione under air or oxygen at room temperature in the presence of tert-dodecanethiol affords the corresponding nor-alcohols after a reductive work-up. (C) 1998 Elsevier Science Ltd. All rights reserved.
Barton, Derek H.R.; Crich, David; Kretzschmar, Gerhard, Journal of the Chemical Society. Perkin transactions I, 1986, p. 39 - 54
作者:Barton, Derek H.R.、Crich, David、Kretzschmar, Gerhard