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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1165928Generated: October 25, 2026

Water → 1-(2-Chloro-5-nitrophenyl)-2-(2,2-dimethylpropionyl)hydrazine

https://huagongshe.com/reaction/1165928

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantTriethylamineHCID 8471—
ReactantPivaloyl chlorideHCID 62493—
Reactant(2-Chloro-5-nitrophenyl)hydrazineHCID 4103137—
SolventDichloromethaneHCID 6344—
Product1-(2-Chloro-5-nitrophenyl)-2-(2,2-dimethylpropionyl)hydrazineHCID 1428065477.5%

Reaction Steps

To a solution of 2-chloro-5-nitrophenylhydrazine (37.60 g) in dichloromethane (200 ml), triethylamine (22.27 g) and pivaloyl chloride (26.59 g) were added, and the resultant mixture was stirred at room temperature for 12 hours. The reaction mixture was combined with water. The dichloromethane layer was washed with water, dried and concentrated under reduced pressure to give 1-(2-chloro-5-nitrophenyl)-2-(2,2-dimethylpropionyl)hydrazine (42.23 g). m.p., 153.3° C..

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04912225
Source datasetuspto-grants-1990_03
ORD IDord-8b0224c2604e45d4a79598f762f80c84
Source noteuspto-grants-1990_03