An efficient one-pot three component synthesis of 1,2-dihydro-1-arylnaphtho[1,2-e][1,3]oxazine-3-ones using montmorillonite k10 under solvent free conditions
作者:Srinivas Kantevari、Srinivasu V. N. Vuppalapati、Rajashaker Bantu、Lingaiah Nagarapu
DOI:10.1002/jhet.312
日期:——
An efficient green protocol for the preparation of 1,2‐dihydro‐1‐arylnaphtho[1,2‐e][1,3]oxazine‐3‐ones employing a three‐component one‐pot condensation reaction of β‐naphthol, aromatic aldehyde, urea or thiourea in the presence of montmorillonite K10 clay under solvent free conditions has been described. The present procedure offers advantages such as shorter reaction time (<90 min), simple workup