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.
Reaction of trihaloisocyanuric acids with alkynes: an efficient methodology for preparation of β-haloenol acetates
作者:Livia T. C. Crespo、Geisa P. Nogueira、Marcio C. S. de Mattos、Pierre Mothe Esteves
DOI:10.24820/ark.5550190.p010.211
日期:——
The reaction between trihaloisocyanuric acids and alkynes in the presence of acetic acid provides an efficient methodology for preparation of β-haloenol acetates in yields ranging from 34 to 94%, depending on the halogen and alkynes used. This methodology provides an alternative to typical procedures, which usually employ metal catalysis and are limited to terminal alkynes.