N-bromobutanimide → HCID 12246017, compound

Participants

Reaction Steps

To a suspension of 4.5 g of 5-chloro-2-(3-methyl-4H-1,2,4-triazol-4-yl)benzophenone in 450 ml of carbon tetrachloride was added 3.1 g of N-bromosuccinimide and the mixture was heated under reflux for 3 hours. Then, the reaction mixture was filtered and the filtrate was cooled. The resulting crystals were filtered, washed with carbon tetrachloride and dried to obtain 4.3 g of brown 5-chloro-2-(3-methyl-5-bromo-4H-1,2,4-triazol-4-yl)benzophenone. A part of the product thus obtained was recrystallized from ethyl acetate to give colorless needles, m.p. 198° - 199° C.

Provenance & Evidence