Conversion of Aldehydes to Branched or Linear Ketones via Regiodivergent Rhodium-Catalyzed Vinyl Bromide Reductive Coupling-Redox Isomerization Mediated by Formate.
J Am Chem Soc
; 141(17): 6864-6868, 2019 05 01.
Article
em En
| MEDLINE
| ID: mdl-30998328
ABSTRACT
A regiodivergent catalytic method for direct conversion of aldehydes to branched or linear alkyl ketones is described. Rhodium complexes modified by P tBu2Me catalyze formate-mediated aldehyde-vinyl bromide reductive coupling-redox isomerization to form branched ketones. Use of the less strongly coordinating ligand, PPh3, promotes vinyl- to allylrhodium isomerization en route to linear ketones. This method bypasses the 3-step sequence often used to convert aldehydes to ketones involving the addition of pre-metalated reagents to Weinreb or morpholine amides.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ródio
/
Compostos de Vinila
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Aldeídos
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Complexos de Coordenação
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Formiatos
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Cetonas
Idioma:
En
Revista:
J Am Chem Soc
Ano de publicação:
2019
Tipo de documento:
Article