Copper-catalyzed, stereoconvergent, cis-diastereoselective borylative cyclization of ω-mesylate-α,ß-unsaturated esters and ketones.
Org Biomol Chem
; 15(30): 6323-6327, 2017 Aug 02.
Article
em En
| MEDLINE
| ID: mdl-28730195
ABSTRACT
The Cu(i)-catalyzed stereoconvergent borylative cyclization of ω-mesylate-α,ß-unsaturated compounds is facilitated by a simple Cu-bisphosphine catalyst. This reaction provides a novel route to cis-ß-boron-substituted five- and six-membered carbocycle and heterocycle esters. Mechanistic studies indicate that stereoconvergence and cis-substitution likely stem from the rapid enolation of the borylcopper adduct with the substrate double bond and the formation of a five-membered intermediate, respectively.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Org Biomol Chem
Assunto da revista:
BIOQUIMICA
/
QUIMICA
Ano de publicação:
2017
Tipo de documento:
Article