PURPOSE: To synthesize an alkali metal acetylide from a crude acetylene compound as a raw material, to obtain the alkali metal alcoholate of acetylene alcohol from the alkali metal acetylide, to synthesize the acetylene alcohol and subsequently to extract the acetylene alcohol into a polyhydric alcohol.
CONSTITUTION: A crude acetylene compound containing polymerizable olefins as impurities (generally obtained as a distillate after the decomposition of naphtha) is reacted with an alkali metal compound at 50W180°C for 0.5W15hr in a solvent to provide an alkali metal acetylide, and the reaction system as such is reacted with formaldehyde or paraformaldehyde to synthesize the alkali metal alcoholate of 2-alkyne-1-ol. The alkali metal alcoholate is subsequently hydrolyzed by the addition of an acidic aqueous solution to form acetylene alcohol, which is alone extracted with a polyhydric alcohol, followed by distilling to provide the objective substance having a high purity.
TSUNODA YASUNOBU
MATSUMOTO TOSHIYOSHI
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