Homolytic displacement at carbon: first example of α-attack in the allenyl and propargyl cobaloximes

Gupta, B. D. ; Roy, Sujit (1986) Homolytic displacement at carbon: first example of α-attack in the allenyl and propargyl cobaloximes Tetrahedron Letters, 27 (40). pp. 4905-4908. ISSN 0040-4039

Full text not available from this repository.

Official URL: http://www.sciencedirect.com/science/article/pii/S...

Related URL: http://dx.doi.org/10.1016/S0040-4039(00)85094-7

Abstract

The reactions of allenyl and propargyl cobaloximes with organosulphonyl chlorides under anaerobic and photochemical conditions form sulphones by a novel homolytic attack at the α carbon to the metal. Allenyl and propargyl sulphones are formed by regiospecific attack of RSO2 on the α carbon bound to cobalt in 1̲ and 6̲. CH2=C=CH-CoIII(dmgH)2Py (1̲)+RSO2Cl— CH2=C=CH-SO2R+ClCoIII(dmgH)2Py. CH≡C-CH2-COIII(dmgH)2Py (6̲)+RSO2Cl—CH≡C-CH2-SO2R+ClCoIII(dmgH)2Py.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:42950
Deposited On:08 Jun 2011 08:24
Last Modified:08 Jun 2011 08:24

Repository Staff Only: item control page