羟基乙叉二膦酸双(二烷基钖)的合成及其结构初探

SYNTHESIS AND STRUCTURE DISCUSSION OF BIS[DIALKYLTIN(IV)] DERIVATIVES OF I-HYDROXYETHYLIDENE-1, 1-DIPHOSPHONIC ACID

以羟基乙叉二膦酸钠盐和二氯二烷基锡在绝对乙醇或n-ProH中反应,合成了八个羟基乙叉二膦酸的双(二烷基锡)衍生物HEDP[SnR_2]_2(R=n-C_mH_(2m+1),m=4～10,12),测定并解析了它们的红外光谱,质谱和核磁共振谱,讨论了它们的结构,初步认为可能是双四员环或交叉双六员环。

Eight bis[dialkyltin(IV)] derivatives of 1-hydroxyethylidene-1, 1-diphosphonic acid, HEDP[SnR_2)_2(R=n-C_mH_(2m+1), m=4～10, 12) are synthesized by the reaction of Sodium l-hydroxyethylidene-1, 1-diphosphonate and dialkyltin (IV) dichloride in absolute EtOH or n-PrOH Their IR, MS and ~1HNMR are studied. The structure of HEDP[SnR_2]_2 is dicassed and is tentatively considered as dual four-memherod ring or crossed dual six-membercd ring.