Trichloro- and methyldichlorogermyl monochelates and dibromo- and dichlorogermyl bischelates derived from N,N-disubstituted amides of 2-hydroxycarboxylic acids
作者:D. V. Airapetyan、T. P. Murasheva、S. Yu. Bylikin、A. A. Korlyukov、A. G. Shipov、S. V. Gruener、E. P. Kramarova、Vad. V. Negrebetskii、S. A. Pogozhikh、G. Ya. Zueva、M. Yu. Antipin、Yu. I. Baukov
DOI:10.1007/s11172-012-0093-7
日期:2012.3
The reactions of GeCl4, GeBr4, and MeGeCl3 with O-trimethylsilyl derivatives of N,N-disubstituted amides of 2-hydroxycarboxylic acids afforded pentacoordinate and hexacoordinate neutral (O,O)-mono- and (O,O)-bischelates. The reactions of glycolic acid derivatives with GeX4 produced bischelates X2Ge[OCH2C(O)NR2R3]27a,c,d (X = Cl, R2 = R3 = Me (a), (CH2)5 (c), (CH2CH2)2O (d)) and 8a (X = Br). By contrast
GeCl4、GeBr4 和 MeGeCl3 与 2-羟基羧酸的 N,N-二取代酰胺的 O-三甲基甲硅烷基衍生物反应得到五配位和六配位中性 (O,O)-单-和 (O,O)-双螯合物。乙醇酸衍生物与 GeX4 反应生成双螯合物 X2Ge[OCH2C(O)NR2R3]27a,c,d (X = Cl, R2 = R3 = Me (a), (CH2)5 (c), (CH2CH2)2O ( d)) 和 8a (X = Br)。相比之下,乳酸和扁桃酸衍生物与 GeCl4 和 MeGeCl3 的反应得到单螯合物 Cl3Ge[OCH(R1)C(O)NR2R3] (S)-9a–c (R1 = Me) 和 Cl2MeGe[OCH(R1)C( O)NR2R3] 10a (R1 = H)、(S)-11a,b (R1 = Me) 和 (S)-12a (R1 = Ph) (R2R3 = (CH2)4 (b))。根据 X