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Long‐range polar and steric effects in propionate‐SG1‐type alkoxyamines (SG1‐CHMeCOOX): a multiparameter analysis
Author(s) -
Ananchenko Gennady,
Beaudoin Emmanuel,
Bertin Denis,
Gigmes Didier,
Lagarde Pierre,
Marque Sylvain R. A.,
Revalor Eve,
Tordo Paul
Publication year - 2006
Publication title -
journal of physical organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.325
H-Index - 66
eISSN - 1099-1395
pISSN - 0894-3230
DOI - 10.1002/poc.1035
Subject(s) - steric effects , homolysis , polar , chemistry , substituent , propionate , polarity (international relations) , chemical polarity , reaction rate constant , stereochemistry , radical , organic chemistry , molecule , kinetics , physics , biochemistry , quantum mechanics , astronomy , cell
The effects of the substituent X on the homolysis rate constants ( k d ) of SG1‐propionate type alkoxyamines (SG1‐CHMeCOOX) are analyzed by a multiparametric equation with υ , the steric constant and σ I , the polar inductive/field Hammett constant of X. An influence of long‐range polar and steric effects on k d was observed, that is, decrease in k d with increasing size of the X group and increase in k d with increasing polarity of the X group. Copyright © 2006 John Wiley & Sons, Ltd.