Organocobaloximes in organic synthesis an unusual radical-dependent five-member cyclization
作者:Indira Das、Shantanu Chowdhury、Krishnan Ravikumar、Sujit Roy、Bhagawan Dass Gupta
DOI:10.1016/s0022-328x(96)06801-5
日期:1997.4
Visible light photolysis of organocobaloximes R'C=C[CH2](3)-Co-III(dmgH)(2)Py 1-3 (R' = Ph, TMS, H) with radical trapping agents ArSO2Cl (Ar = Ph, 4-MeC6H4, 4-OMeC6H4, 4-BrC6H4, 6ClC(6)H(4)) and MeSO2Cl afford rearranged or non-rearranged organic products depending on the R' group. 2-Phenylcyclopentenyl sulfones 4a-4f have been obtained exclusively in the case of cobaloxime 1. (C) 1997 Elsevier Science S.A.