A novel three-component one-pot synthesis of pyrano[2,3-d]pyrimidines and pyrido[2,3-d]pyrimidines using microwave heating in the solid state
作者:Ipsita Devi、B.S.D Kumar、Pulak J Bhuyan
DOI:10.1016/j.tetlet.2003.09.063
日期:2003.11
barbituric acids 1, benzaldehyde 2 and alkyl nitriles 3 proceeds in the absence or presence of triethylamine to afford pyrano[2,3-d]pyrimidines 4 and 6-aminouracils 5 or 6-hydroxyaminouracils 6 react with 2 and 3 under identical conditions to yield pyrido[2,3-d]pyrimidines 7, all in high yields.
在不存在或存在三乙胺的条件下,进行巴比妥酸1,苯甲醛2和烷基腈3的微波辅助三组分环缩合反应,得到吡喃并[2,3- d ]嘧啶4和6-氨基尿嘧啶5或6-羟基氨基尿嘧啶6与2和3在相同条件下产生高产率的吡啶并[2,3- d ]嘧啶7。
Arylidenemalononitriles in heterocyclic syntheses: a novel synthesis of pyrido[2,3-d]pyrimidines
作者:Mukti Gogoi、Pulakjyoti Bhuyan、Jagir S. Sandhu、Jogendra N. Baruah
DOI:10.1039/c39840001549
日期:——
Arylidenemalononitriles react with 6-amino and 6-hydroxyamino-1,3-dimethyl- and 3-methyl-pyrimidine-2,4(1H,3H)-dione to give pyrido[2,3-d]pyrimidines in good yields.
亚芳基丙二腈与6-氨基和6-羟基氨基-1,3-二甲基和3-甲基-嘧啶-2,4(1 H,3 H)-二酮反应以高收率得到吡啶并[2,3- d ]嘧啶。
Studies on uracils. 10. A facile one-pot synthesis of pyrido[2,3-d]- and pyrazolo[3,4-d]pyrimidines