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4921563 
Journal Article 
Green and high efficient synthesis of triaza-benzo[b]fluoren-6-one derivatives in water under microwave irradiation 
Shao, Q; Tu, S; Li, C; Cao, L; Zhou, D; Wang, Q; Jiang, Bo; Zhang, Yan; Hao, W 
2008 
Yes 
Journal of Heterocyclic Chemistry
ISSN: 0022-152X 
45 
2 
411-416 
WOS:000254013600018 
Triaza-benzo[b]fluoren-6-one derivatives were synthesized via the three-component reaction of aldehyde, cyclohexane-1,3-dione compound and 2-aminobenzimidazole in water under microwave irradiation. The new protocol has the advantages of excellent yield, low cost, reduced environment impact, wide scope and convenient procedure.