Universität zu Köln

Sauermann, Nicolas, Loup, Joachim ORCID: 0000-0002-0033-5033, Kootz, Darius, Yatham, V. Reddy, Berkessel, Albrecht ORCID: 0000-0003-0470-7428 and Ackermann, Lutz (2017). Triazolylidene Ligands Allow Cobalt-Catalyzed C-H/C-O Alkenylations at Ambient Temperature. Synthesis, 49 (15). S. 3476 - 3485. STUTTGART: GEORG THIEME VERLAG KG. ISSN 1437-210X

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Abstract

Direct alkenylation through C-H/C-O cleavage was accomplished under mild reaction conditions by cobalt catalysts derived from novel triazolylidene ligands. The most effective ligand is characterized by sterically demanding substituents on the 1,4-N-atoms of the triazolylidene neighboring the carbene center. The C-H alkenylations proved viable with alkenyl acetates, carbamates, carbonates and phosphates. For acyclic electrophiles, diastereoconvergent C-O functionalizations were observed.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Sauermann, Nicolas UNSPECIFIED UNSPECIFIED UNSPECIFIED Loup, Joachim UNSPECIFIED orcid.org/0000-0002-0033-5033 UNSPECIFIED Kootz, Darius UNSPECIFIED UNSPECIFIED UNSPECIFIED Yatham, V. Reddy UNSPECIFIED UNSPECIFIED UNSPECIFIED Berkessel, Albrecht UNSPECIFIED orcid.org/0000-0003-0470-7428 UNSPECIFIED Ackermann, Lutz UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-223081
DOI:	10.1055/s-0036-1590471
Journal or Publication Title:	Synthesis
Volume:	49
Number:	15
Page Range:	S. 3476 - 3485
Date:	2017
Publisher:	GEORG THIEME VERLAG KG
Place of Publication:	STUTTGART
ISSN:	1437-210X
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 H BOND ACTIVATION; CROSS-COUPLING REACTIONS; SECONDARY ALKYL-HALIDES; SELECTIVE FUNCTIONALIZATION; OLEFIN METATHESIS; AROMATIC IMINES; STABLE CARBENE; ARYLATIONS; COMPLEXES; PHOSPHATES Multiple languages Chemistry, Organic Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/22308