Chiral titanium(IV) and vanadium(V) salen complexes as catalysts for carbon dioxide and epoxide coupling reactions

Chiral titanium(IV) and vanadium(V) salen complexes as catalysts for carbon dioxide and epoxide coupling reactions Full article

Journal

Tetrahedron
ISSN: 0040-4020 , E-ISSN: 1464-5416

Output data

Year: 2021, Volume: 82, Article number : 131929, Pages count : DOI: 10.1016/j.tet.2021.131929

Authors

Kuznetsova Svetlana A. ¹ , Gorodishch Ilia V. ² , Gak Alexander S. ^3,4 , Zherebtsova Valeria V. ⁵ , Gerasimov Igor S. ⁶ , Medvedev Michael G. ^5,6 , Kitaeva Dinara Kh. ⁴ , Khakina Ekaterina A. ⁴ , North Michael ⁷ , Belokon Yuri N. ⁴

Affiliations

1	Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 119991 Moscow, Russian Federation
2	Moscow State University, Chemistry Department, Leninskiye Gory, 1/3, 119234, Moscow, Russian Federation
3	Moscow State University, Faculty of Material Science, Leninskie Gory, 1/73, 119991, Moscow, Russian Federation
4	Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 119991, Moscow, Russian Federation
5	D. Mendeleev University of Chemical Technology of Russia, Higher Chemical College of the Russian Academy of Sciences, Zelinskogo Street 38-8, 80, 11733, Moscow, Russian Federation
6	N.D. Zelinsky Institute of Organic Chemistry RAS, Leninsky Prospect, 47, 119991, Moscow, Russian Federation
7	Green Chemistry Centre of Excellence, Department of Chemistry, University of York, Heslington, YO10 5DD, UK

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 100 °C 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.

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.
Chiral titanium(IV) and vanadium(V) salen complexes as catalysts for carbon dioxide and epoxide coupling reactions
Tetrahedron. 2021. V.82. 131929 . DOI: 10.1016/j.tet.2021.131929 WOS Scopus OpenAlex

≡ Web of science:	WOS:000620935300011
≡ Scopus:	2-s2.0-85099860141
≡ OpenAlex:	W3118776817