An expedient synthesis of novel, fused pyrimido[4,5-d]pyrimidine and pyrimido [5,4-e] [1,2,4]triazolo[4,3-c]pyrimidine analogues from 4-amino-2,6-dichloro-pyrimidine
作者:Pratibha Sharma、Ashok Kumar、Nilesh Rane
DOI:10.1002/hc.20177
日期:2006.4
A number of potent pyrimido[4,5-d]pyrimidine have efficiently been synthesized by the condensation of 4-amino-2,6-dichloropyrimidine with various substituted benzaldehyde followed by cyclization with ammonium thiocyanate. Also, these newly synthesized derivatives were utilized for the construction of novel pyrimido[5,4-e][1,2,4]triazolo[4,3-c]pyrimidine analogues via oxidative cyclization involving
许多有效的嘧啶并[4,5-d]嘧啶已通过4-氨基-2,6-二氯嘧啶与各种取代苯甲醛缩合,然后与硫氰酸铵环化而有效合成。此外,这些新合成的衍生物还用于通过涉及 1,5-氢提取的氧化环化构建新型嘧啶并 [5,4-e][1,2,4] 三唑并 [4,3-c] 嘧啶类似物。元素和光谱数据证实了所有新构建的衍生物的结构。© 2006 Wiley Periodicals, Inc. 杂原子化学 17:245–253, 2006; 在线发表于 Wiley InterScience (www.interscience.wiley.com)。DOI 10.1002/hc.20177