2-Alkyl- or 2-Alkenyl-4,6-diacetyl resorcinols of the formula
in which R1 is alkyl C 1 to 6, e.g. isopropyl, or alkenyl C 2 to 6, e.g. allyl, are obtained by reacting 4,6-diacetylresorcinol with a corresponding alkyl or alkenyl halide. The reaction is carried out preferably at a temperature of from 20 to 120° C, in a polar hydrogen bonding solvent, e.g. water, and in the presence of a base. The product 4,6-diacetyl resorcinols are useful as intermediates in the production of certain bezodipyran-dicarboxylic acids, which are of known utility as pharmaceuticals. Certain of the product 4,6-diacetyl resorcinols are novel.
式中的 2-烷基-或 2-烯基-4,6-
二乙酰基
间苯二酚,其中 R1 为 C 1-6 烷基(如异丙基)或 C 2-6 烯基(如烯丙基)。
其中 R1 为 C 1-6 烷基(如异丙基)或 C 2-6 烯基(如烯丙基)的
间苯二酚与相应的烷基或烯基卤化物反应而得。反应最好在 20 至 120 摄氏度的温度下、极性氢键溶剂(如
水)中和碱存在下进行。产物 4,6-
二乙酰基
间苯二酚可用作生产某些已知可用作药物的苯并二
吡喃二
羧酸的中间体。某些 4,6-
二乙酰基
间苯二酚产品具有新颖性。