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Effect of the Penultimate Unit on the CON Bond Homolysis in SG1-Based Alkoxyamines

✍ Scribed by Denis Bertin; Pierre-Emmanuel Dufils; Isabelle Durand; Didier Gigmes; Bruno Giovanetti; Yohann Guillaneuf; Sylvain R. A. Marque; Trang Phan; Paul Tordo

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
143 KB
Volume
209
Category
Article
ISSN
1022-1352

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✦ Synopsis

Abstract

The effect of the penultimate unit on the CON bond homolysis rate constant k~d~ was studied for model alkoxyamines. It was shown that the k~d~ for fragments containing penultimate and antepenultimate units were nicely predicted by the tri‐parametric relationship developed in Macromolecules 2005, 38, 2638 and Eur. J. Org. Chem. 2006, 7, 1755 (log k~d~ = −14.33 + 15.06 × σ~RS~ + 20.00 × σ~I~ + 6.96 × υ). A striking effect was observed only for a tert‐butyl‐like group as the penultimate unit.

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