| abstract |
Basic catalysts are prepared from at least one alkali metal compound selected from the group consisting of alkali metal alkoxides, hydroxides and oxides and an alkaline earth metal oxide in a weight ratio of the alkali metal compound to the alkaline earth metal oxide in the range of 0.005/1 to 1/1, and are used for the reaction of aldehydes to form glycol monoesters. Thus, highly active, efficient basic catalysts usable for the aldol reaction or the like to give intended products with a high selectivity are provided. |