320-29-6, name is 4-Bromo-1,2-bis(trifluoromethyl)benzene, belongs to bromides-buliding-blocks compound, is considered to be a conventional heterocyclic compound, which is widely used in drug synthesis. The chemical synthesis route is as follows. HPLC of Formula: C8H3BrF6
Sodium Hydride (60% oil suspension, 5 mmol, 200 mg) is triturated with hexane and suspended in N,N-dimethylformamide (4 mL). 1,2,3,9-Tetrahydro-carbazol-4-one (2.5 mmol, 462 mg) is added to the water-cooled suspension. After 5 minutes, 5-bromo-2-trifluorobenzotrifluoride (5 mmol, 0.71 g) is added. The reaction is stirred at 85 degrees Celsius for 3.5 h. The reaction mixture is allowed to cool and is extracted into ethyl acetate (200 mL) and is washed with water (50 mL). The organic phase is dried over magnesium sulfate. Filtration, followed by concentration, and silica gel chromatography affords the desired 9-(4-Bromo-2-trifluoromethyl-phenyl)-1,2,3,9-tetrahydro-carbazol-4-one as a brown foam (0.74 g, 73%).
The synthetic route of 320-29-6 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; Serenex, Inc.; US2007/185184; (2007); A1;,
Bromide – Wikipedia,
bromide – Wiktionary