Oxidative cleavage of silicon-carbon bonds in organosilicon fluorides to alcohols
作者:K. Tamao、T. Kakui、M. Akita、T. Iwahara、R. Kanatani、J. Yoshida、M. Kumada
DOI:10.1016/s0040-4020(01)88597-5
日期:1983.1
Certain functional silyi groups have been shown to be synthetically equivalent to the OH group. All of the C-Si bonds in organosilicon fluorides, K2(RSiF5] and RnSiF4-n, (n = 1,2,3) are cleaved by m-chloroperbenzoic acid (MCPBA) in DMF to give the corresponding alcohols in high yields. Although the reaction with RSiF52- and RSiF3 proceeds without any additive, cleavage of R2SiF2 and R3SiF requires
已经显示某些官能的甲硅烷基基团在合成上等同于OH基团。在DMF中的间氯过苯甲酸(MCPBA)裂解有机氟化硅中的所有C-Si键K 2(RSiF 5 ]和R n SiF 4-n(n = 1,2,3)裂解,得到相应的尽管与RSiF 5 2-和RSiF 3的反应在没有任何添加剂的情况下进行,但R 2 SiF 2和R 3 SiF的裂解分别需要催化量或过量的KF。存在过量KF的反应。MCPBA-氧化外-和内--2-降冰片基硅酸酯和-三氟硅烷立体定向地进行,并保留在碳上的构型。在RSiF 3的氧化裂解中观察到了显着的溶剂作用。可能的机理涉及六配位硅物质,其中有机基团从分子内从Si迁移到配位MCPBA的O。