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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 239180Generated: October 27, 2026

Triethylamine → N'-(4-Fluoro-3-methyl-benzoyl)-hydrazinecarboxylic acid tert-butyl ester

https://huagongshe.com/reaction/239180

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactanttert-Butyl carbazateHCID 70091—
Reactant4-Fluoro-3-methylbenzoyl chlorideHCID 2774589—
SolventDichloromethaneHCID 6344—
ProductN'-(4-Fluoro-3-methyl-benzoyl)-hydrazinecarboxylic acid tert-butyl esterHCID 8668651480.1%

Reaction Steps

11.2 g 4-fluoro-3-methyl-benzoyl chloride was added to 6.1 g triethylamine and 8 g hydrazinecarboxylic acid tert-butyl ester in 150 mL dichlormethane. The reaction was stirred for 1 h at RT and extracted with water. The organic layer was evaporated and the residue was crystallized from diisopropylether to yield 13 g of the desired product. Rt: 1.22 min (method B) (M+H)+: 269

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08642774B2
Source datasetuspto-grants-2014_02
ORD IDord-d6ff8d03fa8342e3a93c550e0d21d3d1
Source noteuspto-grants-2014_02