Conversions of phenylalkynylcyclopentanols to α-iodoenones
摘要:
N-Iodosuccinimide and catalytic amounts of Koser's reagent react with phenylalkynylcyclopentanols to afford alpha-iodoenones. No ring expansions occur.
Reactions of tertiary propargyl alcohols with sodium halides under oxidative conditions
作者:Marwa M. Aborways、Wesley J. Moran
DOI:10.1016/j.tetlet.2014.02.042
日期:2014.3
The study of the reactions of tertiary propargyl alcohols with sodiumhalidesunder oxidative conditions is presented. With sodium iodide, α-iodoenones were formed, however, with sodium bromide or chloride the α-haloenones were only formed in low yields under anhydrous conditions. Conversely, upon addition of water to the reaction mixtures, α,α-dibromoketones and α,α-dichloroketones were formed in
Tunable Lewis Basicity and Nucleophilicity of Water against α,α-Dihalo-β-acetoxyketones for the Selective Synthesis of α-Haloenones and 1,2-Diketones
作者:Santu Sadhukhan、Beeraiah Baire
DOI:10.1021/acs.joc.1c02780
日期:2022.5.6
competitive nucleophilicity and Lewis basicity of water against novel building blocks α,α-dihalo-β-acetoxyketones (possessing a tertiary acetate) have been reported. This distinct reactivity resulted in the formation of two competitive and different products 1,2-diketones and α-haloenones from a common intermediate α,α-dihalo-β-acetoxyketones through the nucleophilicity and Lewis basicity of water, respectively
Synthesis of haloenones and aryl or alkyl substituted enones or alkenes
申请人:New York University
公开号:US05446203A1
公开(公告)日:1995-08-29
Alternative methods for synthesizing haloenones and haloakenes and their use as starting materials for synthesis of substituted or unsubstituted alkyl and aryl substituted enones and alkenes, including tamoxifen and tamoxifen analogs, using such haloenones and haloalkenes.