A Novel C-C Single-Bond Formation Accompanying C-O Bond Cleavage by Use of a Ketone, an Alkylating Reagent, and a Low-Valent Vanadium Complex in the Presence of a Catalytic Amount of Molecular Oxygen.
J Org Chem
; 62(23): 8109-8113, 1997 Nov 14.
Article
em En
| MEDLINE
| ID: mdl-11671919
ABSTRACT
A C-C single-bond-forming reaction from ketones with accompanying C-O bond cleavage mediated by a RMgBr or RLi-vanadium(II)-O(2) system has been accomplished. Different from conventional reductive coupling reactions of ketones such as the McMurry coupling, the present method forms a C-C single (instead of a double) bond and yields a product that contains components derived from the ketone and the alkylating reagent in a one-pot reaction. Collaboration of both a low-valent vanadium(II) species and a higher-valent vanadium species produced from vanadium(II) and a catalytic amount of O(2) effects the abstraction of the oxygen atom from a C-O bond.
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01-internacional
Base de dados:
MEDLINE
Idioma:
En
Ano de publicação:
1997
Tipo de documento:
Article