1，3-二甲基巴比妥酸（1，3-二甲基-2，4，6（1H，3H，5H）-嘧啶三酮）是活性亚甲基化合物。它经历空心 Pd6 水溶性笼，与芘-1-甲醛，[{（tmen）Pd} 6（timb）4]（NO3）12（tmen =N,N,N′,N′-四甲基乙二胺，timb = 1，3，5-tris （1-咪唑基）苯）催化的诺文葛尔缩合反应。它经过自分选的 Pd7 分子舟实验，其与各种芳香醛，具有内部纳米腔（催化剂）辅助的诺文葛尔缩合反应。它通过 1，3-二甲基脲、丙二酸和乙酸酐在乙酸中反应合成。它广泛用于合成各种合成中间体和杂环化合物1，3-二甲基巴比妥酸可用于以下研究： · 具有五个立体中心的异色烯嘧啶二酮衍生物的对映选择性合成，通过一锅式迈克尔-诺文葛尔缩合-反电子-需要杂-狄尔斯-阿尔德反应。 · 5-芳基-6-（烷基 - 或芳基 - 氨基）-1，3-二甲基呋喃[2，3-d]嘧啶衍生物的合成。 · 微波促进醇的间接官能化，通过使用顺序一锅式 Ir（III）/Pd（0） 催化过程的螺环化 1,3-Dimethylbarbituric acid (1,3-Dimethyl-2,4,6(1H,3H,5H)-pyrimidinetrione) is an active methylene compound. It undergoes hollow Pd6 water-soluble cage, [{(tmen)Pd}6(timb)4](NO3)12 (tmen= N,N,N′,N′-tetramethylethylenediamine, timb=1,3,5-tris(1-imidazolyl)benzene)-catalyzed Knoevenagel condensation reaction with pyrene-1-carboxaldehyde.It undergoes self-sorted Pd7 molecular boat having an internal nanocavity (catalyst)-assisted Knoevenagel condensation reaction with various aromatic aldehydes. It has been synthesized by reacting 1,3-dimethylurea, malonic acid and acetic anhydride in acetic acid. It is widely used for the synthesis of various synthetic intermediates and heterocyclic compounds Usually used in the following studies: Enantioselective synthesis of isochromene pyrimidinedione derivatives having five stereocenters, via one-pot Michael-Knoevenagel condensation-inverse-electron-demand hetero-Diels-Alder reaction;Synthesis of 5-aryl-6-(alkyl- or aryl-amino)-1,3-dimethylfuro [2,3-d]pyrimidine derivatives; Microwave promoted indirect functionalization of alcohols, via spirocyclisation employing a sequential one-pot Ir(III)/Pd(0) catalyzed process.