Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 633182Generated: October 30, 2026

4-Nitrobenzoic Acid → HCID 66877345, compound

https://huagongshe.com/reaction/633182

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Nitrobenzoic AcidHCID 6108—
ReactantStannous ChlorideHCID 24479—
Reactant4-Chloro-3-(pyridin-2-yl)anilineHCID 40151925—
ReactantHCID 66878156HCID 66878156—
SolventHydrochloric AcidHCID 313—
SolventEthanolHCID 702—
ProductHCID 66877345HCID 66877345—

Reaction Conditions

Temperature55 °C

Reaction Steps

300 mg of 4-chloro-3-(pyridin-2-yl)aniline was coupled to 270 mg of 4-nitrobenzoic acid via Procedure G. To 520 mg of N-(4-chloro-3-(pyridin-2-yl)phenyl)-4-nitrobenzamide in 2.5 mL of HCl in 10 mL of EtOH was added 1.3 g of Tin (II) Chloride and stirred at 55° C. Upon completion, the reaction was concentrated and extracted with Ethyl Acetate in water with TEA to reduce emulsions. The organic layer was dried over Magnesium Sulfate, filtered and concentrated to give 4-amino-N-(4-chloro-3-(pyridin-2-yl)phenyl)benzamide. 100 mg of 4-amino-N-(4-chloro-3-(pyridin-2-yl)phenyl)benzamide was reacted with 30 μL of Methanesulfonyl Chloride and 90 μL DIPEA in 500 μL DCM. The reaction mixture was evaporated, subjected to basic workup conditions and purified by reverse phase HPLC to yield N-(4-chloro-3-(pyridin-2-yl)phenyl)-4-(methylsulfonylamide)benzamide. MS (Q1) 402 (M)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09321761B2
Source datasetuspto-grants-2016_04
ORD IDord-2d74a847d2414ddbac7e21e55cc864b8
Source noteuspto-grants-2016_04