91020-70-1

Upstream product

• 62230-47-1 4-methyl-benzohydrazonic acid amide 
• 17240-30-1 2-phenylbenzo[d][1,3]thiazine-4-thione 
• 102635-84-7 4-Methyl-N-(2-phenyl-4-thioxo-4H-quinazolin-3-yl)-benzamidine 
• 6484-29-3 2-phenyl-4-quinazolinylhydrazine 
• 104-87-0 4-methyl-benzaldehyde 

Relevant academic research and scientific papers

REACTION OF 4-THIOXO-1,3-BENZOTHIAZINES WITH AMIDRAZONES: SYNTHESIS OF 1,2,4-TRIAZOLOQUINAZOLINE DERIVATIVES

2-Aryl-4-thioxo-1,3-benzothiazines react with unsubstituted amidrazones to give the corresponding amidinoquinazolinthiones which by action of methyl iodide cyclize to 2,5-diaryl-1,2,4-triazoloquinazolines.Reaction of amidinoquinazolinthiones with h

Quinazoline Derivatives from 2-Phenyl-4-quinazolinylhydrazine

Formic acid and acetyl and benzoyl chloride were treated with 2-phenyl-4-quinazolinylhydrazine (1) under mild conditions to afford the corresponding hydrazides which were converted into 5-phenyltriazoloquinazoline, 2-methyl-5-phenyltr