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Updated: Feb 1, 2026

Controlled Photoredox Ring-Opening Polymerization of O-Carboxyanhydrides Mediated by Ni/Zn Complexes
Published on: November 21, 2017
Versatile approach to activation of alkoxyamine homolysis by 1,3-dipolar cycloaddition for efficient and safe
Mariya Edeleva1, Denis Morozov, Dmitriy Parkhomenko
1N.N. Vorozhtsov Institute of Organic Chemistry SB RAS, 9 Pr. Lavrentjeva, Novosibirsk 630090, Russia.
Abstract:
An alkoxyamine was prepared from a cyclic aldonitrone nitroxide. The resulting alkoxyamine containing an aldonitrone functional substituent is relatively stable but can react readily with vinyl monomers to form a cycloadduct that has a much higher C-ON homolysis rate. This type of in situ activation converts the aldonitrone alkoxyamine into an efficient controlling agent for nitroxide-mediated polymerization. Here we present a study on this reaction of C-ON bond homolysis and application of such an alkoxyamine as an in situ-activated initiator.
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