Ammonium Hydroxide → N2-sec-butyl-4-(2-chloro-4-difluoromethoxy-phenyl)-2,3-dihydro-pyridine-2,3-diamine

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Reaction Steps

Sec-butyl-[4-(chloro-4-difluoromethoxy-phenyl)-3-nitro-2,3-dihydro-pyridin-2-yl]-amine (0.163, 0.44 followed by conc. NH4OH (0.4 mL) and Na2S2O4 (0.62 g, 3.55 mmol) and stirred at room temperature for 4 h. The solution was extracted with EtOAc, washed with H2O, brine, dried Na2SO4, filtered, and concentrated in vacuo to produce 0.145 g (97%) of N2-sec-butyl-4-(2-chloro-4-difluoromethoxy-phenyl)-2,3-dihydro-pyridine-2,3-diamine as a yellow oil.

Provenance & Evidence