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
β Scribed by Srinivas Kantevari; Srinivasu V. N. Vuppalapati; Rajashaker Bantu; Lingaiah Nagarapu
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 2010
- Tongue
- English
- Weight
- 117 KB
- Volume
- 47
- Category
- Article
- ISSN
- 0022-152X
- DOI
- 10.1002/jhet.312
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β¦ Synopsis
Abstract
magnified image An efficient green protocol for the preparation of 1,2βdihydroβ1βarylnaphtho[1,2βe][1,3]oxazineβ3βones employing a threeβcomponent oneβpot condensation reaction of Ξ²βnaphthol, 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, excellent yields, recovery and reusability of catalyst. J. Heterocyclic Chem., (2010).
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