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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2392737Generated: October 30, 2026

Formaldehyde → HCID 18980502, compound

https://huagongshe.com/reaction/2392737

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
ReactantDimethylamine, hydrochlorideHCID 10473—
ReactantHCID 15816724HCID 15816724—
SolventAcetic AcidHCID 176—
ProductHCID 18980502HCID 18980502—

Reaction Conditions

Temperature105 °C

Reaction Steps

11.8 g (50 mmole) of compound (8), 0.84 g (28 mmole) paraformaldehyde and 2.26 g (28 mmole) dimethylamine hydrochloride were dissolved in 20 ml acetic acid and stirred for 15 minutes in a bath at 105° C. After evaporating off the solvent, the mixture was adjusted to an alkaline pH with aqueous sodium hydroxide solution and the Mannich base was extracted with dichloromethane. The solution was dried and the solvent was distilled off. 12.1 g (80% theoretical) of compound (9) were obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05801201
Source datasetuspto-grants-1998_09
ORD IDord-a210672788a141168a5a724c9ac9af60
Source noteuspto-grants-1998_09