| 摘要 |
Glycol esters derived from olefinically unsaturated compounds are prepared by contacting the olefinically unsaturated compound and molecular oxygen in a carboxylic acid medium in the presence of a catalyst. The particular catalyst employed is a combination of tellurium and an appropriate form of bromine which will insure that the pH of the reaction medium when determined at 25 DEG C. is maintained at less than 2.0, after a 10:1 weight dilution with water. Improved selectivities to the vicinal glycol diester are obtained when operating within the specified reaction conditions. |
