Synthesis and Structure ofO,O-DiethylN-[(trans-4-Aryl-5,5-dimethyl-2-oxido-2λ5-1,3,2-dioxaphosphorinan-2-yl)methyl]phosphoramidothioates
作者:Zhiwei Miao、Jianfeng Zhang、Zhanwei Cui、Bin Wang、Ruyu Chen
DOI:10.1002/hlca.200790201
日期:2007.10
A study on the synthesis of the novel N-(cyclic phosphonate)-substituted phosphoramidothioates, i.e., O,O-diethyl N-[(trans-4-aryl-5,5-dimethyl-2-oxido-2λ5-1,3,2-dioxaphosphorinan-2-yl)methyl]phosphoramidothioates 4a–l, from O,O-diethyl phosphoramidothioate (1), a benzaldehyde or ketone 2, and a 1,3,2-dioxaphosphorinane 2-oxide 3 was carried out (Scheme 1 and Table 1). Some of their stereoisomers were
在新颖的合成的研究ñ - (环膦酸酯) -取代phosphoramidothioates,即,O2,ø -二乙基ñ - [(反式-4-芳基-5,5-二甲基-2-氧化-2- λ 5 -1从O,O,O-二乙基磷酰胺基硫酸酯(1),苯甲醛或酮2,和1,3,2-二氧杂膦基膦酸酯2-氧化物3上得到了1,3,2-二氧杂磷酰氨基-2-基)甲基]磷酰胺基硫代酸酯4a - 1。出(方案1和表1)。分离了它们的一些立体异构体,并确定了它们的结构。乙酰氯的存在对于该反应是必不可少的,并且加速了中间体5的分子内脱水过程,形成了相应的席夫碱7(方案2)。