Universität zu Köln

Movahhed, Sohajl, Westphal, Julia, Dindaroglu, Mehmet, Falk, Anna and Schmalz, Hans-Guenther ORCID: 0000-0003-0489-1827 (2016). Low-Pressure Cobalt-Catalyzed Enantioselective Hydrovinylation of Vinylarenes. Chem.-Eur. J., 22 (22). S. 7381 - 7385. WEINHEIM: WILEY-V C H VERLAG GMBH. ISSN 1521-3765

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Abstract

An efficient and practical protocol for the enantioselective cobalt-catalyzed hydrovinylation of vinylarenes with ethylene at low (1.2 bar) pressure has been developed. As precatalysts, stable [L2CoCl2] complexes are employed that are activated in situ with Et2AlCl. A modular chiral TADDOL-derived phosphine-phosphite ligand was identified that allows the conversion of a broad spectrum of substrates, including heterocyclic vinylarenes and vinylferrocene, to smoothly afford the branched products with up to 99% ee and virtually complete regioselectivity. Even polar functional groups, such as OH, NH2, CN, and CO2R, are tolerated.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Movahhed, Sohajl UNSPECIFIED UNSPECIFIED UNSPECIFIED Westphal, Julia UNSPECIFIED UNSPECIFIED UNSPECIFIED Dindaroglu, Mehmet UNSPECIFIED UNSPECIFIED UNSPECIFIED Falk, Anna UNSPECIFIED UNSPECIFIED UNSPECIFIED Schmalz, Hans-Guenther UNSPECIFIED orcid.org/0000-0003-0489-1827 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-275233
DOI:	10.1002/chem.201601283
Journal or Publication Title:	Chem.-Eur. J.
Volume:	22
Number:	22
Page Range:	S. 7381 - 7385
Date:	2016
Publisher:	WILEY-V C H VERLAG GMBH
Place of Publication:	WEINHEIM
ISSN:	1521-3765
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Chemistry > Institute of Organic Chemistry
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language PHOSPHINE-PHOSPHITE-LIGANDS; ASYMMETRIC HYDROVINYLATION; 1,4-HYDROVINYLATION REACTION; ETHYLENE; STYRENE; PHOSPHORAMIDITE; HYDROCYANATION; CODIMERIZATION; 1,4-ADDITION; METATHESIS Multiple languages Chemistry, Multidisciplinary Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/27523