Direct and practical synthesis of 2-arylbenzoxazoles promoted by activated carbon.

Direct and practical synthesis of 2-arylbenzoxazoles promoted by activated carbon.

Organic letters (2003-09-26)

Yuka Kawashita, Natsuki Nakamichi, Hirotoshi Kawabata, Masahiko Hayashi

RESUMEN

[reaction: see text] 2-Arylbenzoxazoles were directly synthesized from substituted 2-aminophenols and aldehydes in the presence of activated carbon (Darco KB) in xylene under an oxygen atmosphere.

MATERIALES

Referencia del producto

Marca

Descripción del producto

242233

Sigma-Aldrich

Activated charcoal, DARCO^®, 4-12 mesh particle size, granular

A71301

Sigma-Aldrich

2-Aminophenol, 99%

242241

Sigma-Aldrich

Activated charcoal, DARCO^®, 12-20 mesh, granular