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)。