RADICAL CYCLIZATIONS OF METHYLENECYCLOPROPANE DERIVATIVES

Authors
DESTABEL C KILBURN JD KNIGHT J
Citation
C. Destabel et al., RADICAL CYCLIZATIONS OF METHYLENECYCLOPROPANE DERIVATIVES, Tetrahedron letters, 34(19), 1993, pp. 3151-3154
Citations number
16
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Tetrahedron letters → ACNP
ISSN journal
00404039
Volume
34
Issue
19
Year of publication
1993
Pages
3151 - 3154
Database
ISI
SICI code
0040-4039(1993)34:19<3151:RCOMD>2.0.ZU;2-4
Abstract
Radical cyclisations of various methylenecyclopropane derivatives have been studied and it has been found that methylenecyclopropyl propyl r adicals undergo exclusive 5-exo cyclisation while methylenecyclopropyl butyl radicals give a mixture of products resulting from 6-exo and 7- endo cyclisation. Attempted cyclisations of methylenecyclopropyl penty l radicals leads to reduced products only.