A One-Pot Approach to Δ2-Isoxazolines from Ketones and Arylacetylenes
摘要:
The sequential reaction of ketones with arylacetylenes and hydroxylamine in the presence of KOBut/DMSO followed by the treatment of the reaction mixture with H2O and KOH leads to Delta(2)-isoxazolines in up to 88% yield.
A One-Pot Approach to Δ2-Isoxazolines from Ketones and Arylacetylenes
摘要:
The sequential reaction of ketones with arylacetylenes and hydroxylamine in the presence of KOBut/DMSO followed by the treatment of the reaction mixture with H2O and KOH leads to Delta(2)-isoxazolines in up to 88% yield.
Transition-Metal-Free Superbase-Promoted Stereoselective α-Vinylation of Ketones with Arylacetylenes: A General Strategy for Synthesis of β,γ-Unsaturated Ketones
作者:Boris A. Trofimov、Elena Yu. Schmidt、Nadezhda V. Zorina、Elena V. Ivanova、Igor' A. Ushakov
DOI:10.1021/jo301005p
日期:2012.8.17
A wide variety of beta,gamma-unsaturated ketones of E configuration have been obtained in good to excellent yields via (KOBu)-Bu-t/DMSO promoted alpha-vinylation of aliphatic, cycloaliphatic, and alkyl aromatic (heteroaromatic) ketones with diverse arylacetylenes.