190076-47-2

Upstream product

• 103-71-9 phenyl isocyanate 
• 248583-85-9 2-[{2-[(Z)-Hydroxyimino]-2-phenyl-ethyl}-(4-methoxy-phenyl)-amino]-1-phenyl-ethanone oxime 
• 104-94-9 4-methoxy-aniline 
• 190076-45-0 1-(4-methoxyphenyl)-4-phenyl-2,5-dihydro-1H-imidazole 3-oxide 

Downstream Products

• 190076-45-0 1-(4-methoxyphenyl)-4-phenyl-2,5-dihydro-1H-imidazole 3-oxide 

Relevant academic research and scientific papers

Beckmann fragmentation of diphenylcarbamoylated N-aryldiphenacylamine dioximes. New method for the synthesis of imidazooxadiazolones

N-Aryl-N,N-diphenacylamine dioximes were prepared by the reaction of corresponding arylamines with α-bromoacetophenone oxime in ethanol-water at room temperature. These compounds reacted with aryl isocyanates in acetonitrile to give imidazooxadiazolones 9. The probable mechanism of the reaction is discussed.

Regio and diastereoselective addition of imidazoline 3-oxides to aryl isocyanates

Δ3-Imidazoline 3-oxides 1 underwent regio and diastereoselective cycloaddition with aryl isocyanates 2 give 5,6,7,7a-tetrahydroimidazo[1.5-b][1.2.4]oxadiazol-2(1H)-ones 3 in excellent yields. Thermally and chemically induced retro cycloaddition or compounds 3 was demonstrated.

Regio and diastereoselective addition of imidazoline 3-oxides to aryl isocyanates

Δ3-Imidazoline 3-oxides 1 underwent regio and diastereoselective cycloaddition with aryl isocyanates 2 to give 5,6,7,7a-tetrahydroimidazo[1,5-b][1,2,4]oxadiazol-2(1H)-ones 3 in excellent yields. Thermally and chemically induced retro cycloaddit