| 摘要 |
1318456 Glycerine and its diesters DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 28 Aug 1970 [30 Aug 1969] 41446/70 Heading C2C A diester of glycerine of the formula where R<SP>1</SP> and R<SP>2</SP> each independently represent a C 1-5 alkyl radical is prepared by reacting an allyl ester of the formula with a peracid of the formula R<SP>1</SP>.CO.OOH at elevated temperature, preferably 40-90‹ C., in the presence of the corresponding carboxylic acid of the formula R<SP>1</SP>COOH, and optionally, if desired, subjecting the glycerine diester obtained after separation of unreacted allyl ester and carboxylic acid to alcoholysis (e.g. with methanol) or aqueous hydrolysis to produce glycerine. Preferably R<SP>1</SP> and R<SP>2</SP> are each methyl radicals. |
