An efficient synthesis of naphtha[1,2-e]oxazinone and 14-substituted-14H-dibenzo[a,j]xanthene derivatives promoted by zinc oxide nanoparticle under thermal and solvent-free conditions |
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Authors: | GB Dharma Rao MP Kaushik AK Halve |
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Institution: | 1. Discovery Centre, Process Technology Development Division, Defence R&D Establishment, Jhansi Road, Gwalior 474 002, MP, India;2. School of Studies of Chemistry, Jiwaji University, Gwalior 474 002, MP, India |
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Abstract: | A general synthetic route to the synthesis of 1,2-dihydro-1-arylnaphtho1,2-e]1,3]oxazine-3-one and 14-substituted-14H-dibenzoa,j]xanthenes derivatives has been developed using ZnO-NPs under thermal and solvent-free conditions. The union of 2-naphthol, aldehyde, urea enabling the synthesis of naphtho1,2-e]1,3]oxazinone and 2-naphthol, aldehyde gave dibenzoa,j]xanthenes in excellent yields. This method provides several advantages like simple work-up, environmentally benign, and shorter reaction times along with high yields. |
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