期刊
ORGANIC & BIOMOLECULAR CHEMISTRY
卷 16, 期 8, 页码 1337-1342出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ob03064a
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资金
- CSIR, New Delhi [CSC-0108, MLP-0203]
- CSIR, New Delhi
An oxidant, base and metal free methodology has been developed for the synthesis of various 2-substituted and non-substituted benzazoles, quinazolines and quinazolinones using oxalic/malonic acids as an in situ carbon source. This methodology is applicable for a wide range of substituted o-phenylenediamine, o-aminothiophenol, o-aminophenol and o-aminobenzamide containing various functional groups and provides good to excellent yields of the corresponding product. Furthermore an easy workup procedure, high yield and easy isolation of products are key features of this methodology. The developed protocol is also applicable for the gram scale synthesis of benzimidazoles.
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