Research on Chemical Intermediates p. 1879 - 1898 (2014)
Update date:2022-08-03
Topics:
Shaterian, Hamid Reza
Fahimi, Nafiseh
Azizi, Kobra
An eco-friendly procedure for synthesis of 2,3-dihydroquinazoline-4(1H)- one, 2H-indazolo[2,1-b]phthalazinetrione, and benzo[4,5]imidazo[1,2-a]pyrimidine derivatives by three-component reaction, with phosphoric acid supported on alumina as catalyst, is described. Noticeable features of the method are that it is solvent-free, work-up is easy, yields are excellent, and the catalyst is reusable.
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