Chiral titanium, vanadium salen complexes as catalysts for carbon dioxide and epoxide coupling reactions

Kuznetsova, S.A.; Gorodishch, I.V.; Gak, A.S.; Zherebtsova, V.V.; Gerasimov, I.S.; Medvedev, M.G.; Kitaeva, D.K.; Khakina, E.A.; North, M.; Belokon, Y.N.

Информация о цитировании статьи получена из Web of Science, Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 9 апреля 2021 г.

Авторы: Kuznetsova Svetlana A., Gorodishch Ilia V., Gak Alexander S., Zherebtsova Valeria V., Gerasimov Igor S., Medvedev Michael G., Kitaeva Dinara Kh, Khakina Ekaterina A., North Michael, Belokon Yuri N.
Журнал: Tetrahedron
Том: 82
Год издания: 2021
Издательство: Pergamon Press Ltd.
Местоположение издательства: United Kingdom
Номер статьи: 131929
DOI: 10.1016/j.tet.2021.131929
Аннотация: Chiral titanium(IV) and vanadium(V) salen complexes were found to catalyse the synthesis of cyclic carbonates from carbon dioxide and epoxides. Reactions could be conducted at room temperature and 50 bar pressure of carbon dioxide or at 100oC and atmospheric pressure with catalyst concentrations as low as 0.1 mol% and co-catalyst (tetrabutylammonium bromide) concentrations as low as 0.5 mol%. The cyclic carbonates formed were racemic and a mechanism is proposed which relies on Lewis base catalysis to activate the carbon dioxide rather than Lewis acid catalysed activation of the epoxide as more commonly proposed for catalysis by metal complexes.
Добавил в систему: Ларионов Владимир Анатольевич

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Chiral titanium, vanadium salen complexes as catalysts for carbon dioxide and epoxide coupling reactionsстатья

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