APPROXIMATE RATE CONSTANTS FOR CYCLIZATIONS OF ALKYL RADICALS ONTO BENZYL OXIME ETHERS

Authors
KIM S KIM Y YOON KS
Citation
S. Kim et al., APPROXIMATE RATE CONSTANTS FOR CYCLIZATIONS OF ALKYL RADICALS ONTO BENZYL OXIME ETHERS, Tetrahedron letters, 38(14), 1997, pp. 2487-2490
Citations number
31
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Tetrahedron letters → ACNP
ISSN journal
00404039
Volume
38
Issue
14
Year of publication
1997
Pages
2487 - 2490
Database
ISI
SICI code
0040-4039(1997)38:14<2487:ARCFCO>2.0.ZU;2-1
Abstract
The approximate rate constants for 5-exo and 6-exo cyclizations of alk yl radicals onto oxime ethers have been kinetically determined to be 4 .2x10(7) s(-1) and 2.4x10(6) s(-1) at 80 degrees C, respectively. The competition studies gave similar results, confirming the effectiveness of rate constants obtained from kinetic studies. (C) 1997 Elsevier Sc ience Ltd.