with a high yield. (VI) is obtained by addition of diethyl hydrogenophosphonate HPO(OCH2CH3)2 to I-chloropropan-Zone CH3C(O) CH2Cl with a yield of 80%. These epoxides then lead to polyols bearing a phosphonate group by ring opening with diethanolamine (HOCH2CH2)2NH:(HOCH2CH2)2NCH2C(OH)(R)-Z-PO(OCH2CH3)2 with (VII): R˭H, Z˭H2; (VIII): R˭H, Z˭H2O(CH2)3S(CH2)3; (IX):R˭ CH3. This reaction appears to be an
摘要 制备了三种环氧
膦酸酯。这些化合物具有以下通式:
CH2(O)C(R)-Z-PO(O )2 与 (II):R˭H、Z˭H2;(V):R˭H、Z˭
H2O( )3S( )3;(六):R˭
CH3。(II)是在
苄腈存在下通过
过氧化氢环氧化
烯丙基膦酸二
乙酯得到的,产率超过60%。(V) 是通过 HS( )3PO(O )2 与
烯丙基缩水甘油醚 (O)CH -O- CH˭ 光加成获得的,收率很高。(VI)通过将
磷酸氢二
乙酯HPO(O )2加入到I-
氯丙烷-区 C(O) Cl中获得,产率为80%。然后,这些
环氧化物通过与
二乙醇胺 (HO )2NH:(HO )2N C(OH)(R)-Z-PO(O )2 开环产生带有
膦酸酯基团的多元醇,其中 (VII):R˭H, Z˭H2 ; (VIII):R˭H、Z