A Study on Reactions of an Alkynylsilane with Oxone-KX (X = Cl, Br, I) and Its One-pot Transformation into an Amide/Ester
作者:Vinodkumar Sriramoju、Raveendra Jillella、Srinivas Kurva、Sridhar Madabhushi
DOI:10.1246/cl.161171
日期:2017.4.5
Oxyhalogenation reactions of a variety of alkynylsilanes were studied using oxone as mild oxidant and KCl, KBr, and KI as halogen sources. In this study, reaction of an alkynylsilane with oxone-KX (X = Cl or Br) produced trichloromethyl/tribromomethyl ketones in high yields. Under similar conditions, however, reactions of alkynylsilanes with oxone-KI were found to give exclusively 1,2,2-triiodovinyl
使用 oxone 作为温和氧化剂和 KCl、KBr 和 KI 作为卤素源研究了各种炔基硅烷的氧卤化反应。在这项研究中,炔基硅烷与 oxone-KX(X = Cl 或 Br)的反应以高产率产生了三氯甲基/三溴甲基酮。然而,在类似条件下,发现炔基硅烷与 oxone-KI 的反应以高产率仅产生 1,2,2-三碘乙烯基衍生物。在这项研究中,开发了通过三卤甲基酮分别与胺和醇反应,将炔基硅烷有效地一锅法转化为酰胺和酯的新方法。