2- Bromo-5-phenyl-1,3,4-oxadiazole

N N 3-( p-Bromophenyl)-4-methyl- 1,2,5-oxadiazole 2-oxide 3-(p-bromo-phenyl)-4-methyl-l,2,5-oxadiazole 5-oxide 3,4-diphenyl-l,2,5-oxadiazole... 

Bromination of the phenyl group in 5-(4-nitrophenyl)-2-phenyl-l,3,4-oxadiazole in the presence of potassium bromate yielded o- (16%), m- (14%), and /)-bromo (26%) products, together with low yields of dibromo products <84JCR(S)382>. Similar results were obtained on nitration of 2,5-diphenyl-1,3,4-oxadiazole with fuming nitric acid to give dinitro products. The ratio of o- w-.-/ -nitration... 

Bromo-Af -(4-chloro-2-( 1,3,4-oxadiazol-2-yl) phenyl)-A -cyclohexylbenzofuran-2,3-diamine (5c) Yellow crystals, mp 194-196 °C yield 93%... 

Browne et al. (2009) have described the application of microwave irradiation to generate a range of C-4 arylatedsydnones (4-bromo-N-phenyl-NH-l,2,3-oxadiazole... 

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