Patent ID: 7638658
Filing Date: 2009-12-29
Classification: C07C

Abstract:
1. A process for the manufacture of an acetylenically unsaturated alcohol comprising reacting a carbonyl compound with acetylene in the presence of ammonia and an alkali metal hydroxide, wherein the carbonyl compound is selected from a group consisting of methyl ethyl ketone, methylglyoxal dimethylacetal, 6-methyl-5-hepten-2-one, 6-methyl-5-octen-2-one, hexahydropseudoionone, 4-(2,6,6-trimethyl-1 -cyclohexen-1-yl)-3-buten-2-one and 6,10,14-trimethyl-2-pentadecanone, the alkali metal hydroxide is used in aqueous solution and the molar ratio of the alkali metal hydroxide to the carbonyl compound is less than 1:200.