Azinoiminophosphorane mediated synthesis of 5H,7H-1,2,4Triazolo[1,5-c][1,3]benzoxazepin-7-ones and 6H,8H-1,2,4-Triazolo[1,5-c][1,3]oxazepin-6-ones

被引：0
|
作者：
Lee, CH [1 ]
Kim, BG [1 ]
Lee, KJ [1 ]
机构：
[1] Hanyang Univ, Dept Chem Engn, Seoul 133791, South Korea
来源：
JOURNAL OF HETEROCYCLIC CHEMISTRY | 2002年 / 39卷 / 06期
关键词：
D O I：
10.1002/jhet.5570390635
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
The aza-Wittig reactions of benzophenone-, acetophenone- and benzaldehyde 1-[(triphenylphosphoranylidene)amino]ethylidenehydrazones (4) with phthalic anhydride, 2,3-dimethylmaleic anhydride and 7-oxabicyclo[2,2,1]hept-5-ene-2,3- dicarboxylic anhydride (5a) provide a new route to 5H,7H-1,2,4-triazolo[1,5-c][1,3]benzoxazepin-7-ones 8a-c or 6H,8H-1,2,4-triazolo[1,5-c][1,3]oxazepin-6-ones 8d-h via the thermal reaction of the expected azinoimine lactones 6.
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页码：1329 / 1331
页数：3
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