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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 355191Generated: October 28, 2026

2-(Dimethylamino)ethanol → N,N1-Dimethyl-S-(2-dimethylaminoethyl)isothiourea

https://huagongshe.com/reaction/355191

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-(Dimethylamino)ethanolHCID 7902—
Reactant1,1-Dimethyl-2-thioureaHCID 3034192—
SolventHydrogen BromideHCID 260—
ProductN,N1-Dimethyl-S-(2-dimethylaminoethyl)isothioureaHCID 86736996128%

Reaction Steps

A mixture of 2-dimethylaminoethanol (2.23 g), N,N1 -dimethylthiourea (2.6 g) and aqueous hydrobromic acid (48%, 20 ml) was boiled under reflux for 50 hours and evaporated to dryness. The residue was recrystallised from a mixture of methanol and ethanol to give the dihydrobromide of the title compound (5.6 g) m.p. 198°-199°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04378365
Source datasetuspto-grants-1983_03
ORD IDord-b1db0b3f5fbf468aaf2dfcb7bfaf30dc
Source noteuspto-grants-1983_03