New derivatives of 3,5-disubstituted 4H-Pyran-4-one podands (9-15) were prepared by transesterification reaction of dimethyl or diethyl 2,6-dimethyl-4H-pyran-4-one-3,5-dicarboxylate with some glycol, glycol ethers or by nucleophilic substitution of some phenols or glycol ethers with 3,5-bis (bromomethyl)-2,6-diphenyl-4H-pyran-4-one.
新型的3,5-二取代的4H-
吡営-4-酮
穴醚衍
生物(9-15)通过二甲基或
二乙基2,6-二甲基-4H-吡喃-4-酮-
3,5-二羧酸酯与某些多元醇、多元醇醚的酯交换反应,或者通过某些
酚或多元醇醚与3,5-双(
溴甲基)-2,6
-二苯基-4H-
吡喃-4-酮的亲核取代反应制备得到。