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Selective Formation of Polycarbonate over Cyclic Carbonate: Copolymerization of Epoxides with Carbon Dioxide Catalyzed by a Cobalt(III) Complex with a Piperidinium End‐Capping Arm

2006; Wiley; Volume: 45; Issue: 43 Linguagem: Inglês

10.1002/anie.200603132

1521-3773

Koji Nakano, Toshihiro Kamada, Kyoko Nozaki,

Organometallic Complex Synthesis and Catalysis

Sidestepping a cyclic side product: Copolymerization of terminal epoxides with CO2 was investigated by using a cobalt(III) complex bearing a piperidinium end-capping arm and a piperidinyl arm (see scheme; DME=1,2-dimethoxyethane). The catalyst system can selectively produce copolymers without contaminant formation of cyclic carbonates even at high conversion of the epoxide (>99 %). Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2006/z603132_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.