A process for the preparation of 3-(2'-acyloxyethyl)-dihydro-2(3H)furanones of the general formula I ##STR1## in which R.sup.1 denotes C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.8 cycloalkyl, aryl, C.sub.7 -C.sub.12 aralkyl, or C.sub.7 -C.sub.12 alkylaryl, in which a 3-(2'-oxyethyl)-dihydro-2(3H)furanone of the general formula II ##STR2## in which R.sup.2 denotes C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.8 cycloalkyl, aryl, C.sub.7 -C.sub.12 aralkyl, or C.sub.7 -C.sub.12 alkylaryl is caused to react with a carboxylic acid, a carboxylic anhydride, and/or an acyl halide in the presence of an acid catalyst at temperatures of from 50.degree. to 250.degree. C. and pressures of from 0.1 to 100 bar.
一种制备一般式I的3-(2'-酰氧乙基)-二氢-2(3H)-
呋喃酮的方法,其中R.sup.1表示C.sub.1-C.sub.12烷基,C.sub.5-C.sub.8环烷基,芳基,C.sub.7-C.sub.12芳基烷基或C.sub.7-C.sub.12烷基芳基,反应3-(2'-氧乙基)-二氢-2(3H)-
呋喃酮一般式II,其中R.sup.2表示C.sub.1-C.sub.12烷基,C.sub.5-C.sub.8环烷基,芳基,C.sub.7-C.sub.12芳基烷基或C.sub.7-C.sub.12烷基芳基,与
羧酸,
羧酸酐和/或
酰卤在酸催化剂存在下反应,反应温度在50℃至250℃,压力在0.1至100巴。