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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1258636Generated: October 31, 2026

4-Chloro-5-(3,3-difluoropyrrolidin-1-yl)-2-nitroaniline → 4-Chloro-5-(3,3-difluoropyrrolidin-1-yl)benzene-1,2-diamine dihydrochloride

https://huagongshe.com/reaction/1258636

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Chloro-5-(3,3-difluoropyrrolidin-1-yl)-2-nitroanilineHCID 67957846—
CatalystPalladiumHCID 23938—
SolventTetrahydrofuranHCID 8028—
Product4-Chloro-5-(3,3-difluoropyrrolidin-1-yl)benzene-1,2-diamine dihydrochlorideHCID 67958019—

Reaction Steps

A mixture of 4-chloro-5-(3,3-difluoropyrrolidin-1-yl)-2-nitroaniline (300 mg, 1.1 mmol), THF (10 mL) and Pd/C (20 mg) was stirred for 1.5 days at RT under a hydrogen atmosphere (3.0 bar). The catalyst was removed by filtration. To the filtrate was added 4 M HCl in dioxane (10 mL). The mixture was concentrated and used in the next step without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08466186B2
Source datasetuspto-grants-2013_06
ORD IDord-d3a0e1a11a8c4d2ea6a32455eb846de4
Source noteuspto-grants-2013_06