Consecutive Reactions of Dialkyl Ethynyl Carbinols with Acetylene in Superbase KOH/DMSO Suspension
作者:Elena Yu. Schmidt、Ivan A. Bidusenko、Nadezhda V. Zorina、Igor A. Ushakov、Al’bina I. Mikhaleva、Ludmila V. Klyba、Boris A. Trofimov
DOI:10.1016/j.mencom.2012.05.005
日期:2012.5
2-Methylbut-3-yn-2-ol, a tertiary propargylic alcohol, reacts with acetylene under pressure in superbase KOH/DMSO suspension (80 degrees C, 1 h) to afford, along with the expected vinyl ether, 2,2,4,4-tetramethyl-5-methylidene-1,3-dioxolane, 2,5-dimethyl-5-(vinyloxy)-hex-3-yn-2-ol and (Z)-2-methyl-4-(2-methylbut-3-yn-2-yloxy)but-3-en-2-ol.