Concise synthesis of 2, 3-diarylpyrimido[1,2-a]benzimidazole based on isoflavones.
The 2,3-diarylpyrimido[1,2-a]benzimidazole derivatives were prepared by one-step cyclocondensation of 2-aminobenzimidazole with isoflavone in methanol. Single-crystal diffraction analysis was performed for 2-(2-hydroxyl-4-isopropoxy-phenyl)-3-phenylpyrimido[1,2-a]benzimidazole. The fluorescence properties of the fused 2, 3-diarylpyrimido[1, 2-a]benzimidazole were evaluated.
Zhang
Zun-Ting
ZT
Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, and School of Chemistry and Materials Science, Shaanxi Normal University, Xi'an 710062, P.R. China. zhangzt@snnu.edu.cn
Qiu
Li
L
Xue
Dong
D
Wu
Jing
J
Xu
Fei-Fei
FF
D001562:Benzimidazoles / Q000138:chemical synthesis*; D018360:Crystallography, X-Ray; D007529:Isoflavones / Q000737:chemistry*; D013050:Spectrometry, Fluorescence
D001562:Benzimidazoles; D007529:Isoflavones