Organische Phosphorverbindungen 44 Darstellung und Eigenschaften von Bis-(ß-chloräthyl)-phosphinsäure-Derivaten [1]
作者:Ludwig Maier
DOI:10.1002/hlca.19710540124
日期:——
Reaction of ClCH2CH2PCl2 with ethylene oxide gives the phosphonous acid ester ClCH2CH2P (OCH2CH2Cl)2 which on heating to 120° rearranges to the phosphinic acid ester (ClCH2CH2)2P(O)OCH2CH2Cl (3). Chlorination of 3 with PCl5 in CCl4-solution yields the phosphinic chloride (ClCH2CH2)P(O)Cl (4), which on treatment with P2S5 at 170° produces the thioderivative, (ClCH2CH2)2P(S)Cl, (5). Treatment of 4 and
ClCH 2 CH 2 PCl 2与环氧乙烷反应生成亚膦酸酯ClCH 2 CH 2 P(OCH 2 CH 2 Cl)2,加热至120°时会重排成次膦酸酯(ClCH 2 CH 2)2 P( O)OCH 2 CH 2 Cl(3)。在CCl 4溶液中用PCl 5氯化3产生次膦酰氯(ClCH 2 CH 2)P(O)Cl(4),将其用P处理在170°下的2 S 5生成硫代衍生物(ClCH 2 CH 2)2 P(S)Cl,(5)。在酸结合剂的存在下用醇,硫醇或胺处理4和5可得到相应的次膦酸和硫代次膦酸衍生物(ClCH 2 CH 2)P(X)Y,(X = O,S; Y = OR,SR,NR 2)(6)。的反应6与过量碱,得到相应的divinylphosphinic和divinylthiophosphinic酸衍生物(CH 2 = CH)2 P(X)Y(X = O,S; Y = OR,SR,NR 2)(7)。