Organic & biomolecular chemistry

On benzo [b][1, 4] diazepinium-olates,-thiolates and-carboxylates as anti-Hückel mesomeric betaines

A Schmidt, AG Shilabin, M Nieger

文献索引：Schmidt, Andreas; Gholipour Shilabin, Abbas; Nieger, Martin Organic and Biomolecular Chemistry, 2003 , vol. 1, # 23 p. 4342 - 4350

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被引用次数: 12

摘要

2, 3-Diaminophenol 4, 3, 4-diaminophenol 5, 4-methoxy-1, 2-diaminobenzene 6, 3, 4- diaminobenzenethiol 7, 2, 3-diaminobenzoic acid 8, and 3, 4-diaminobenzoic acid 9 were reacted with 2, 4-pentanedione to yield the corresponding benzo [b][1, 4] diazepinium salts, respectively. The hydroxy-benzo [b][1, 4] diazepinium salts 17 and 18 do not form mesomeric betaines (MB) on deprotonation. Instead, they are converted into the diimines ...