83583-77-1

Upstream product

• 85094-63-9 2-(4-methoxyphenyl)-4H-3,1-benzothiazin-4-one 
• 100-66-3 methoxybenzene 
• 16024-82-1 methyl 2-isothiocyanatobenzoate 
• 28005-57-4 N-(2-ethoxycarbonylphenyl)-4-methoxythiobenzamide 

Relevant academic research and scientific papers

Unexpected formation of cyclic hydroxamic acids from O-(2-aminobenzoyl) hydroxylamine

Cyclic hydroxamic acids 3 and 4 are the unexpected products in the reaction of O-(2-aminobenzoyl) hydroxylamine 1 and orthoesters, acid chlorides, ethyl chloroformate.

Synthesis of 4(3H)-Quinazolinones from Derivatives of Methyl 2-Isothiocyanatobenzoate

Ethyl N-((2-methoxycarbonylphenyl)thiocarbamate (2), N-(2-ethoxycarbonylphenyl)-4-methoxythiobenzamide (3b), and 2-(4-methoxyphenyl)4H,-3,1-benzothiazin-4-one (4a), react with nucleophilic reagents containing at least one primary amino group to yield a variety of 2-substituted and 2,4-disubstituted 4(3H)-quinazolinones, as well as some tricyclic and tetracyclic products.