期刊
ORGANIC LETTERS
卷 14, 期 4, 页码 1150-1153出版社
AMER CHEMICAL SOC
DOI: 10.1021/ol300084v
关键词
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资金
- Chinese Academy of Sciences
- National Natural Science Foundation of China [20921091, 20572119]
- Ministry of Science Technology [2009CB940900]
Cul/4-hydroxy-L-proline catalyzed coupling of N-substituted o-bromobenzamides with formamide takes place at 80 degrees C, affording 3-substituted quinazolinones directly. Under these conditions other amides that were tested only provided simple coupling products, which can be converted into 2,3-disubstituted quinazolinones via HMDS/ZnCl2 mediated condensative cyclization.
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