Hydrazine hydrate (1:1) → 2-(4-aminomethyl-3-bromophenyl)-4-(3,5-dichlorophenyl)-4-trifluoromethyl-4,5-dihydro-3H-pyrrole

Participants

Reaction Steps

To a solution of 0.22 g of N-[2-bromo-4-[4-(3,5-dichlorophenyl)-4-trifluoromethyl-4,5-dihydro-3H-pyrrole-2-yl]phenylmethyl]phthalimide in 5 mL of ethanol, 0.074 g of hydrazine monohydrate was added and the resultant reaction mixture was stirred while heating the mixture to reflux for 2 hours. After the completion of the reaction, the reaction mixture was left to be cooled down to room temperature and deposited insoluble substances were filtered off, followed by distilling off the solvent under reduced pressure. To the resultant residue, 20 mL of chloroform was added and insoluble substances were filtered off, followed by washing the filtrate with water (20 mL×1). Subsequently, the filtrate was dehydrated and dried over a saturated brine and anhydrous sodium sulfate in this order and the solvent was distilled off under reduced pressure to obtain 0.18 g of the objective substance as a yellow resinoid.

Provenance & Evidence