Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1831508Generated: November 1, 2026

Ammonium Hydroxide → 4-(2,4-dichloro-phenyl)-N2-(2-methoxy-1-methyl-ethyl)-pyridine-2,3-diamine

https://huagongshe.com/reaction/1831508

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium HydroxideHCID 14923—
ReactantSodium DithioniteHCID 24489—
Reactant[4-(2,4-Dichloro-phenyl)-3-nitro-pyridin-2-yl]-(2-methoxy-1-methyl-ethyl)-amineHCID 22052080—
SolventWaterHCID 962—
Solvent1,4-DioxaneHCID 31275—
Product4-(2,4-dichloro-phenyl)-N2-(2-methoxy-1-methyl-ethyl)-pyridine-2,3-diamineHCID 6270565172%

Reaction Steps

[4-(2,4-Dichloro-phenyl)-3-nitro-pyridin-2-yl]-(2-methoxy-1-methyl-ethyl)-amine (0.20 g, 0.56 mmol was dissolved in dioxane (8 mL) and H2O (8 mL), followed by conc. NH4OH (0.3 mL) and Na2S2O4 (0.79 g, 4.53 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 0.13 g (72%) of 4-(2,4-dichloro-phenyl)-N2-(2-methoxy-1-methyl-ethyl)-pyridine-2,3-diamine: MS (AP) m/z 326.2 [(M+H)+, 90].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07067658B2
Source datasetuspto-grants-2006_06
ORD IDord-46c5ad2a8bd344ce8d00ec33eb36746c
Source noteuspto-grants-2006_06