1147-43-9

Usage

Chemical Properties

yellow crystalline powder

Upstream product

• 57901-53-8 2-(2-nitrobenzoyl)benzoic acid 
• 1143-50-6 5,6-dihydro-6,11-dioxomorphanthridine 

Downstream Products

• 83132-81-4 2-(3-Indazolyl)benzoic acid 
• 7265-24-9 2-(2'-amino-phenyl)-benzo[d][1,3]oxazin-4-one 
• 612-34-0 N-anthraniloyl-anthranilic acid 
• 6079-73-8 2-hydroxybenzoylbenzoic acid 
• 1573-92-8 9-oxo-9H-fluorene-1-carboxylic acid 
• 1143-50-6 5,6-dihydro-6,11-dioxomorphanthridine 
• 486-25-9 9-fluorenone 
• 84-65-1 9,10-phenanthrenequinone 
• 82-45-1 1-amino-9,10-anthracenedione 
• 83132-70-1 2-(2-{N'-[1-Carbamoyl-1-cyano-meth-(Z)-ylidene]-hydrazino}-benzoyl)-benzoic acid 
• 7732-18-5 water 
• 869937-11-1 (2-aminophenyl)-[2-(piperidin-1-carbonyl)phenyl]methanone 
• 1352551-23-5 2-(2-{[(5-methoxy-1H-indol-2-yl)carbonyl]amino}benzoyl)benzoic acid 
• 578-95-0 10H-acridin-9-one 

Relevant academic research and scientific papers

CYCLIZATION REACTIONS OF SOME o-ACYLPHENYLHYDRAZONES

The hydrazones Ia-Id and IIa-IId have been prepared by azo coupling of ethyl cyanacetylcarbamate and cyanacetamide, respectively, with diazotized o-aminoacetophenone, o-aminobenzophenone, 2-(2-aminobenzoyl)benzoic acid and 1-amino-9,10-antraquinone.The hydrazones Ia-Id have been alkaline or thermally cyclized to 2-aryl-4,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine-6-carbonitriles IIIa-IIId.On boiling in strongly acidic medium the hydrazones I and II are cyclized to the corresponding 3-substituted indazoles Va-Vc and 2,6-dihydronaphthoindazol-6-one (Vd).Three hours boiling in 20percent hydrochloric acid does not affect the 1,2,4-triazine cycle of nitriles IIIa-IIId, the nitrile groups being only hydrolyzed to give the corresponding carboxylic acids IVa-IVd.On contrary, boiling in aqueous pyridine causes splitting of the 1,2,4-triazine cycle and formation of arylhydrazonocyanacetamides IIa-IId.IR and NMR spectroscopy has been used to study the possibility of simultaneous hydrogen bond to the both carbonyl groups in hydrazones I and II.