1097967-92-4

Upstream product

• 136-95-8 2-amino-benzthiazole 
• 118-48-9 isatoic anhydride 
• 99-61-6 3-nitro-benzaldehyde 

Relevant academic research and scientific papers

Agar: A novel, efficient, and biodegradable catalyst for the one-pot three-component and green synthesis of 2,3-dihydroquinazolin-4(1H)-one, 4H-pyrimidobenzothiazole and 2-aminobenzothiazolomethylnaphthol derivatives

3-(2′-Benzothiazolyl)-2,3-dihydroquinazolin-4(1H)- one, 1-((benzo[d]thiazol-2-ylamino) (aryl)-methyl)naphthalen-2-ol and 4H-pyrimido[2,1-b][1,3]benzothiazoles derivatives were prepared via one-pot three-component reaction of arylaldehydes, 2-aminobenzothiazole and isatoic anhydride or β-naphthol or ethyl/methyl acetoacetate in the presence of agar as a highly efficient homogenous catalyst. The use of a non-toxic and biodegradable catalyst, as well as high yields, short reaction time, simple work-up and green conditions are the most important advantages of this method. Graphical Abstract: [Figure not available: see fulltext.]

Synthesis, characterization and catalytic application of tributyl(carboxymethyl)phosphonium bromotrichloroferrate as a new magnetic ionic liquid for the preparation of 2,3-dihydroquinazolin-4(1H)-ones and 4H-pyrimidobenzothiazoles

Abstract: In this paper, tributyl(carboxymethyl)phosphonium bromotrichloroferrate as a new magnetic ionic liquid bearing acetic acid tags was synthesized and characterized by several methods including Fourier transform infrared spectroscopy (FT-IR), energ

Zr (HSO4)4: An efficient catalyst for the Synthesis of 3-(2'-benzothiazolyl)-2, 3-dihydroquinazolin-4 (1H)-ones

A simple and efficient synthesis of 3- (2'-benzothiazolyl)-2, 3-dihydroquinazolin-4 (1H)-ones has been accomplished by the one-pot condensation of isatoic anhydride, aldehydeand 2-aminobenzothiazole under solvent-free conditionsin the presence of Zr (HSO4)4.

Synthesis of a novel class of 3-(2′-benzothiazolyl)-2,3- dihydroquinazolin-4(1H)-ones under solvent-free and catalyst-free conditions

(Chemical Equation Presented) A solvent- and catalyst-free one-pot three-component condensation reaction approach was developed for the synthesis of a new class of 3-(2′-benzothiazolyl)-2,3-dihydroquinazolin-4(1H)-ones in relatively good yields.