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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2240287Generated: October 30, 2026

Dichloromethane → HCID 68428933, compound

https://huagongshe.com/reaction/2240287

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
ReactantTriethylamineHCID 8471—
ReactantPivaloyl chlorideHCID 62493—
Reactant(4-Methoxyphenyl)hydrazineHCID 77023—
SolventWaterHCID 962—
ProductHCID 68428933HCID 68428933—

Reaction Steps

To a mixture of 50 ml of dichloromethane and 2.76 g of free 4-methoxyphenyl-hydrazine there are added first 2.2 g of triethylamine and then, dropwise, at a temperature of from 0° to 5°, 2.65 g of pivaloyl chloride. The reaction mixture is stirred for 12 hours at room temperature and then discharged into water. The aqueous mixture is extracted with dichloromethane, the extract is concentrated and the residue is recrystallised from toluene/pentane, yielding N-(4-methoxyphenyl)-N′-pivaloyl-hydrazine which melts at from 126° to 127°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07723362B2
Source datasetuspto-grants-2010_05
ORD IDord-2fabd1ebcf9a44c6b47c6be027082d0f
Source noteuspto-grants-2010_05