O-Alkyl O′-triorganostannyl phosphonates, R3SnOP(O)(H)(OR′) (R = Me, Bun, Ph; R′= Me and Et) have been obtained in excellent yield by the reactions of sodium salts of O-alkyl phosphonic acids with triorganotin chlorides. The triphenyltin derivatives are insoluble, high melting, white crystalline solids, whereas the trialkyltin derivatives are colourless, non-volatile, thermally and hydrolytically stable
ø -烷基O' -triorganostannyl
膦酸酯,R 3 SNOP(O)(H)(OR')(R = Me中,卜Ñ中,Ph; R'=我和Et)都在良好的收率由
钠的反应中获得的盐ø -烷基
膦酸与三
有机锡氯化物。三苯基
锡衍
生物是不溶的,高熔点的白色结晶固体,而三烷基
锡衍
生物是无色,不挥发,热和
水解稳定的粘稠液体,可与普通有机溶剂混溶。它们的分子量取决于浓度以及取决于溶剂。IR和1 H,13 C,31 P和119Sn NMR光谱数据与涉及通过
膦酸酯桥连接的平面三
有机锡基团的聚合物结构一致。由于P→Sn的强配位,两个轴向SnOP键成为等效键。