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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2371519Generated: October 31, 2026

Hydroquinone → HCID 19907402, compound

https://huagongshe.com/reaction/2371519

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydroquinoneHCID 785—
Reactant3-(Dimethylamino)propyl chloride hydrochlorideHCID 94308—
ReactantSodiumHCID 5360545—
SolventHydrochloric AcidHCID 313—
SolventMethanolHCID 887—
ProductHCID 19907402HCID 1990740210.7%

Reaction Steps

First, to a solution of 2.3 g of metallic sodium dissolved in 35 ml of absolute methanol, a solution of 2.2 g of hydroquinon in 15 ml of absolute methanol and a solution of 7.9 g of 3-dimethylaminopropyl chloride hydrochloride in 10 ml absolute methanol were added, and the mixture was heated to reflux for 5 hours. After the reaction was completed, the mixture was evaporated under a reduced pressure, and after adding water to the resulting residue, alkalized with 10% sodium hydroxide, salted-out with sodium chloride and extracted with 100 ml of chloroform, the extract was washed with a saturated sodium chloride, and dried over magnesium sulfate. The solvent was removed under a reduced pressure to obtain a reddish liquid, which was dissolved in 1N hydrochloric acid, the solution was washed with chloroform, alkalized with 1N sodium hydroxide and extracted with 100 ml of chloroform. The extract was washed with a saturated sodium chloride aqueous solution and dried over magnesium sulfate, and the solvent was evaporated off under a reduced pressure to obtain 0.60 g of a desired compound as a reddish brown liquid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05093370
Source datasetuspto-grants-1992_03
ORD IDord-4b3f91bd4e524a74bddaf16923c9a3f3
Source noteuspto-grants-1992_03