Chiral Discrimination in N-(O, O-dialkyl)phosphoamino Acid Monolayers at the Air-water Interface

In this paper, chiral discrimination in N-(O,O-dialkyl)phosphoamino acid monolayers at the air/water interface was studied and it was revealed that the D:L=1:1 racemic monolayer of N-(O, O-dihexadecyl)phosphoalanine is packed more densely in solid phase while shows a higher LE to LC transition pressure than the enantiomeric ones.

O,O-二烷基炔基磷酸酯合成方法的改进

以四氢呋喃为溶剂，端炔与乙基溴化镁反应，得到炔基溴化镁，炔基溴化镁与Ｏ，Ｏ－二烷基磷酰氯反应，得到Ｏ，Ｏ－二烷基炔基磷酸酯，产率为６７％～７９％。

利用季铵盐催化剂提高地亚农收率

以嘧啶醇和O ,O -二乙基硫代磷酰氯 (简称氯化物 )为原料 ,在相转移催化剂作用下合成地亚农 ,考察了影响反应的因素。结果表明 :选用苄基三乙基氯化铵做相转移催化剂 ,0 .1mol嘧啶醇用 1.0g催化剂 ,溶剂选用甲苯 ,嘧啶醇和氯化物的物质的量比为 1∶1.1,收率可以达到 94 %。