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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 495626Generated: October 25, 2026

Hydrochloric Acid → Ethyl 4-chlorobenzyl[2,4-dinitro-6-(trifluoromethyl)phenyl]carbamate

https://huagongshe.com/reaction/495626

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium hydrideHCID 24758—
ReactantBenzene, 2-chloro-1,5-dinitro-3-(trifluoromethyl)-HCID 67851—
ReactantEthyl (4-chlorobenzyl)carbamateHCID 874364—
SolventTetrahydrofuranHCID 8028—
ProductEthyl 4-chlorobenzyl[2,4-dinitro-6-(trifluoromethyl)phenyl]carbamateHCID 2082774618%

Reaction Steps

Ethyl 4-chlorobenzylcarbamate (865.9 mg) and 2-chloro-3,5-dinitrobenzotrifluoride (996.7 mg) were dissolved in tetrahydrofuran (15 ml), and to the solution was added sodium hydride (162.1 mg). The reaction mixture was heated at reflux for 3 hours. After allowing to cool, to the reaction mixture was added 1N hydrochloric acid, and the mixture was extracted with ethyl acetate. The organic layer-was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated in vacuo. The resultant residue was purified by silica gel column (75 g, hexane:ethyl acetate=10:1) to give the title compound (294.7 mg, 18%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06939887B2
Source datasetuspto-grants-2005_09
ORD IDord-b8381c3a47f54add9ea4ae9324337194
Source noteuspto-grants-2005_09