Patent ID: 6156941
Filing Date: 2000-12-05
Classification: C07B,C07C

Abstract:
A process for producing 1,2-propanediol characterized in that 3-halogeno-1,2-propanediol represented by the general formula [I] wherein X stands for a halogen atom is catalytically hydrogenated in an alcoholic solvent having two to four carbon atoms in the presence of a base of 0.9 to one mole with respect to one mole of 3-halogeno-1,2-propanediol to give 1,2-propanediol represented by the formula [II] ##STR3## wherein X stands for a halogen atom, and said base being selected from the group consisting of hydroxides of alkali metals or alkali earth metals, carbonates of alkali metals or alkali earth metals, hydrogencarbonates of alkali metals, hydrides and alkali alkoxides.