Reactions of 2-Diazo-1,2-Diphenylethanone and Diphenyldiazomethane with Ketohydrazones
作者:Girija Shankar Singh、Surendra Bahadur Singh、Kailash Nath Mehrotra
DOI:10.1246/bcsj.57.1667
日期:1984.6
The reactions of 2-diazo-1,2-diphenylethanone (1) with ketohydrazones (3a–c) in equimolecular ratio yield (diphenylacetyl)hydrazones (4a–c) of the corresponding benzophenones which on further treatment with 1 in equimolecular ratio leads to 1-diphenylacetylazo-1,1,3,3-tetraaryl-2-propanones (5a–c). The product 5a is also obtained in the reaction of 1 with benzophenone hydrazone (3a) in 2 : 1 molecular
2-重氮-1,2-二苯乙酮 (1) 与酮腙 (3a-c) 以等分子比的反应产生相应二苯甲酮的 (二苯乙酰) 腙 (4a-c),进一步用等分子比的 1 处理导致1-二苯基乙酰偶氮-1,1,3,3-四芳基-2-丙酮 (5a–c)。产物5a也在1与二苯甲酮腙(3a)以2:1的分子比反应中获得。1 以及二苯基重氮甲烷 (2) 与酮腙 (3) 的双 (乙酰丙酮) 铜 (II) 催化反应得到酮 (6)。讨论了产物形成的机理途径。