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.
Regio- and Stereoselective Iodoacyloxylations of Alkynes
作者:Daniel L. Priebbenow、Robert. W. Gable、Jonathan Baell
DOI:10.1021/acs.joc.5b00250
日期:2015.5.1
A new method for the regioselective and stereoselective iodoacyloxylation of alkynes has been developed. This protocol utilizes a combination of an iodobenzene dicarboxylate and iodine to functionalize a series of activated and unactivated alkynes in an entirely selective and predictable fashion. The resultant iodo-enol ester were subsequently coupled with boronic acids to afford tetrasubstitute alkene derivatives, which could be further converted to the corresponding 1,1-disubstituted acetophenone.
Mechanism for the peracetic acid oxidation of trans-.alpha.-iodo-.alpha.'-acetoxystilbene to benzil
作者:Yoshiro Ogata、Iwao Urasaki
DOI:10.1021/jo00941a019
日期:1973.1
Conjugated iodoacetoxylation of a triple bond
作者:E. B. Merkushev、L. G. Karpitskaya、G. I. Novosel'tseva、V. S. Raida