Selective oxygenation of alkynes: a direct approach to diketones and vinyl acetate
作者:Xiao-Feng Xia、Zhen Gu、Wentao Liu、Ningning Wang、Haijun Wang、Yongmei Xia、Haiyan Gao、Xiang Liu
DOI:10.1039/c4ob01404a
日期:——
Convenient and expedient methods for the synthesis of α-diketones and β-haloenol acetates from arylalkynes using PhI(OAc)2 as an oxidant are developed at room temperature.
A novel and inexpensive, environmentally friendly method for the preparation of iodine monoacetate is presented using iodine and Oxone in acetic acid/acetic anhydride. The reagent is used in a highly efficient approach for the regio- and diastereoselective iodoacetoxylation of alkenes and alkynes in a simple one-pot process.