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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 884020Generated: October 31, 2026

Pyridine → HCID 67041134, compound

https://huagongshe.com/reaction/884020

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
Reactant2,2,2-Trichloroethyl chloroformateHCID 87063—
ReactantBenzoic acid, 4-[(4-amino-3-fluorophenyl)thio]-3-nitro-, methyl esterHCID 67040417—
SolventDichloromethaneHCID 6344—
ProductHCID 67041134HCID 6704113494%

Reaction Conditions

Temperature5 °C

Reaction Steps

The product of Example 96B (2.0 g, 6.2 mmol) and pyridine (0.55 mL, 6.8 mmol) in CH2Cl2 (20 mL) was reacted with 2,2,2-trichloroethyl chloroformate (0.92 mL, 6.5 mmol) dropwise at 5° C. The mixture was stirred at 5° C. for 30 minutes and concentrated. The residue was diluted with water (50 mL). The resulting crystals were collected by filtration, washed with water and i-Pr2O, and dried at room temperature in vacuum overnight to give the title compound as pale yellow crystals (2.9 g, 93%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08236950B2
Source datasetuspto-grants-2012_08
ORD IDord-8ce8616f1c8141da97a59eba48903609
Source noteuspto-grants-2012_08