Metal-free synthesis of phosphinoylchroman-4-ones via a radical phosphinoylation-cyclization cascade mediated by K2S2O8.
Beilstein J Org Chem
; 16: 1974-1982, 2020.
Article
em En
| MEDLINE
| ID: mdl-32831954
ABSTRACT
A variety of chroman-4-ones bearing phosphine oxide motifs were conveniently synthesized from readily available diphenylphosphine oxides and alkenyl aldehydes via a metal-free tandem phosphinoylation/cyclization protocol. The reaction utilizes K2S2O8 as oxidant and proceeds in DMSO/H2O at environmentally benign conditions with a broad substrate scope and afforded the title compounds in moderate yields.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Beilstein J Org Chem
Ano de publicação:
2020
Tipo de documento:
Article