55084-76-9

Upstream product

• 1199-02-6 5-phenyl-3H-[1,3,4]oxadiazol-2-one 
• 79-22-1 methyl chloroformate 

Downstream Products

• 879-60-7 3-methyl-5-phenyl-1,3,4-oxadiazol-2(3H)-one 
• 41126-01-6 3-isopropyl-5-phenyl-1,3,4-oxadiazol-2(3H)-one 
• 41126-08-3 3-isopropyl-5-(4-methoxy-phenyl)-3H-[1,3,4]oxadiazol-2-one 
• 93774-01-7 {Co(3-carbomethoxy-5-phenyl-1,3,4-oxadiazoline-2-on)(SCN)2(CH₃OH)} 
• 93774-03-9 {Zn(3-carbomethoxy-5-phenyl-1,3,4-oxadiazoline-2-on)(SCN)2(MeOH)} 

Relevant academic research and scientific papers

Syntheses and thermal rearrangements of 2-phenyl-4-alkoxycarbonyl-1,3,4-oxadiazol-5(4H)-ones and related sulfur compounds

Syntheses of nine 2-phenyl-4-alkoxycarbonyl-1,3,4-oxadiazol-5(4H)-ones are described.On heating about 200 deg C, these compounds decarboxylate and give 2-phenyl-4-alkyl-1,3,4-oxadiazol-5(4H)-ones.Although many analogies suggest that the rearrangement proceeds through the cyclisation of a 1,5-dipole, arising from the decarboxylation of the heterocycle, no direct evidence for such a mechanism was obtained.On the contrary, the synthesis and the thermal rearrangement of four related sulfur compounds show that such a postulated intermediate cannot explain all the experimental results.

Synthesis of 5-Aryl-3-carbazoyl-1,3,4-oxadiazol-2(3H)-one. Derivatives and their Ring Transformation into 5-Benzamido-1,2,4-triazolidine-3,5-dione Derivatives

Some 5-aryl-3-carbazoyl-1,3,4-oxadiazol-2(3H)-one derivatives 6 and 9 have been synthesized in two ways.The expected thermal ring transformation into 2,5-disubstituted 1,3,4-oxadiazoles did not occur but, by acid hydrolysis of 5-aryl-3-3-benzylidene-2-me