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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 892690Generated: October 30, 2026

Hydrochloric Acid → HCID 19760912, compound

https://huagongshe.com/reaction/892690

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantFormaldehydeHCID 712—
ReactantDimethylamine, hydrochlorideHCID 10473—
ReactantHCID 15035464HCID 15035464—
Solvent1-ButanolHCID 263—
SolventIsopropanolHCID 3776—
ProductHCID 19760912HCID 1976091282.7%

Reaction Steps

A solution of 22 g. (0.10 mole) of 5-(p-chlorophenyl)-2-furyl methyl ketone, 16 g. (0.20 mole) of dimethylamine hydrochloride, 6 g (0.20 mole) of paraformaldehyde, 100 ml. of n-butanol, and I ml. of concentrated HCl is heated under reflux for 2 hr. Solvent is removed on a rotary evaporator and the yellow, residual solid is partitioned between ether and water. The layers are separated and the water layer is washed with ether. The water layer is made basic with 1N NaOH solution and is extracted twice with ether. The ethereal layers are dried over MgSO4 and are concentrated on a rotary evaporator to give a residual semi-solid. The solid is dissolved in 350 ml. of isopropanol and is treated with ethereal HCl. The solid which is deposited is collected by filtration and is dried in a 60° oven to give 13 g (42%) of product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05118708
Source datasetuspto-grants-1992_06
ORD IDord-cb1f964481924853b3907f0e39d16610
Source noteuspto-grants-1992_06