The reaction of organophosphorus reagents with substituted-1,3-diphenylpropanetrione: New synthesis of azaphospholene derivatives
作者:L. S. Boulos、M. H. N. Arsanious
DOI:10.1002/hc.1078
日期:——
The reaction of 1,3-diphenyl-2-(phenylimino)-3-(ylidenemethyl-acetate)-1-propanone (5) with trisdialkylaminophosphines (6a,b) in refluxing toluene afforded the new oxazaphospholene products (7a–b). On the other hand, the cyclic azaphospholene adducts 8a–b were isolated from the reaction of 5 with 6a,b without solvent. Trialkyl phosphites 1b–c react with compound 5 to give the respective dialkyl phosphate
1,3-二苯基-2-(苯基亚氨基)-3-(亚基甲基-乙酸酯)-1-丙酮 (5) 与三二烷基氨基膦 (6a,b) 在回流甲苯中反应得到新的氧氮杂磷烯产物 (7a-b)。另一方面,环状氮杂磷烯加合物 8a-b 是从 5 与 6a,b 的反应中分离出来的,没有溶剂。亚磷酸三烷基酯 1b-c 与化合物 5 反应生成各自的磷酸二烷基酯产物 (9a,b)。此外,三二烷基氨基膦 (6a,b) 与 2a 和 2b 反应分别生成偶极加合物 10a,b 和膦酸酯产物 11a,b。考虑了可能的反应机制,结构分配基于兼容的分析和光谱结果。© 2001 John Wiley & Sons, Inc. 杂原子化学 12:511–517, 2001