137678-22-9

Upstream product

• 1711-61-1 5-(4-chlorophenyl)-3H-[1,3,4]oxadiazol-2-one 
• 105-36-2 ethyl bromoacetate 

Downstream Products

• 137678-61-6 4-Chloro-N-(2,4-dioxo-3-{[1-phenyl-meth-(E)-ylidene]-amino}-imidazolidin-1-yl)-benzamide 
• 137678-39-8 4-Chloro-N-(3-methyl-2,4-dioxo-imidazolidin-1-yl)-benzamide 
• 137678-42-3 N-(3-Butyl-2,4-dioxo-imidazolidin-1-yl)-4-chloro-benzamide 
• 137678-40-1 4-Chloro-N-(3-ethyl-2,4-dioxo-imidazolidin-1-yl)-benzamide 
• 137678-54-7 2-[5-(4-Chloro-phenyl)-2-oxo-[1,3,4]oxadiazol-3-yl]-N-ethyl-acetamide 
• 30458-54-9 1-(4-chloro-benzoylamino)-imidazolidine-2,4-dione 
• 137678-57-0 N-(3-Amino-2,4-dioxo-imidazolidin-1-yl)-4-chloro-benzamide 
• 137678-41-2 4-Chloro-N-(2,4-dioxo-3-propyl-imidazolidin-1-yl)-benzamide 

Relevant academic research and scientific papers

Ring Transformations of 1,3,4-Oxadiazol-2(3H)-one Derivatives into 1-Amino and 1,3-Diamino-2,4-imidazolidinedione (Hydantoin) Derivatives

Some ethyl 5-aryl(or benzyl)-2-oxo-1,3,4-oxadiazole-3(2H)-acetate were prepared and treated with ammonia, primary amines or hydrazine to give 1-amino-2,4-imidazolidinedione or 1,3-diamino-2,4-imidazolidinedione derivatives.The 1,3-bis(benzylideneamino)-2,4-imidazolidinedione was obtained by reacting ethyl bromoacetate with the 1,5-dibenzylidenecarbonohydrazide sodium salt.