Reactions of 2,4-Dialkoxy-1,3-diphenyl-1,3,2,4-diazadiphosphetidines with Benzil, Benzalacetophenone, and α-Phenyliminobenzyl Phenyl Ketone
作者:Takayuki Kawashima、Naoki Inamoto
DOI:10.1246/bcsj.49.1924
日期:1976.7
2,4-Diethoxy-1,3-diphenyl-1,3,2,4-diazadiphosphetidine (1a) reacted with benzil, benzalacetophenone, and α-phenyliminobenzyl phenyl ketone in refluxing o-dichlorobenzene to give 2-ethoxy-3,4,5-triphenyl-Δ4-1,3,2-oxazaphospholine 2-oxide, 2-ethoxy-1,3,5-triphenyl-Δ4-1,2-azaphospholine 2-oxide, and 2-anilino-3,4,5-triphenyl-Δ4-1,3,2-oxazaphospholine 2-oxide, respectively. Under mild conditions, reaction
2,4-Diethoxy-1,3-diphenyl-1,3,2,4-diazadiphosphetidine (1a) 在回流邻二氯苯中与苄基、苯并苯乙酮和 α-苯基亚氨基苄基苯基酮反应生成 2-ethoxy-3,4 ,5-triphenyl-Δ4-1,3,2-oxazaphospholine 2-oxide, 2-ethoxy-1,3,5-triphenyl-Δ4-1,2-azaphospholine 2-oxide, and 2-anilino-3,4,分别为 5-三苯基-Δ4-1,3,2-氧氮杂磷啉 2-氧化物。在温和条件下,1a 与苄基反应生成 Ramirez 型 1:2 加合物,该加合物热分解生成氧氮杂膦衍生物。