Synthesis of Novel 2-Methyl and 2-Cyanomethyl-12-Aryl-8,12-Dihydro-9H-cHromeno[3,2-e][1,2,4]Triazolo[1,5-c]Pyrimidin-11(10H)-One Derivatives
作者:Bei Li、Zhong-Xia Wang、Zheng Xing、Li-Zhuang Chen、Guang-Fan Han
DOI:10.3184/174751915x14190040330104
日期:2015.1
12-dihydro-9H-chromeno[3,2-e][1,2,4]triazolo[1,5-c]pyrimidin-11(10H)-one derivatives were synthesised by the cyclisations of acetic anhydride or ethyl cyanoacetate with chromeno[2,3-d]pyrimidine derivatives, which were obtained by the reactions of hydrazine monohydrate and formimidate derivatives. In addition, 2,9,9-trimethyl-12-(p-tolyl)-8,12-dihydro-9H-chromeno[3,2-e][1,2,4]triazolo[1,5-c]pyrimidin-11(10H)-one and
2-甲基和2-氰基甲基-12-芳基-8,12-二氢-9H-色基[3,2-e][1,2,4]三唑并[1,5-c]嘧啶-11(10H)-一种衍生物是通过乙酸酐或氰基乙酸乙酯与色诺[2,3-d]嘧啶衍生物的环化反应合成的,该衍生物由一水合肼和甲酰亚胺衍生物反应得到。此外,2,9,9-trimethyl-12-(p-tolyl)-8,12-dihydro-9H-chromeno[3,2-e][1,2,4]triazolo[1,5-c] pyrimidin-11(10H)-one 和 2-cyanomethyl-12-phenyl-8,12-dihydro-9H-chromeno[3,2-e][1,2,4]triazolo[1,5-c]pyrimidin- 11(10H)-one进一步通过单晶X射线衍射分析确定。