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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 67978Generated: October 29, 2026

Triethylamine → HCID 178486119, compound

https://huagongshe.com/reaction/67978

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantMethyl isothiocyanateHCID 11167—
ReactantMaleic AcidHCID 444266—
ReactantHCID 178479416HCID 178479416—
SolventAcetoneHCID 180—
SolventMethanolHCID 887—
ProductHCID 178486119HCID 178486119—

Reaction Steps

A suspension of 2-guanidino-4-[(2-aminoethyl)thiomethyl]thiazole hydrochloride (1.52 g.) in methanol (30 ml.) was treated with triethylamine (1.01 g.) to give a pale yellow solution. Methyl isothiocyanate (0.365 g.) was added and the solution stirred for 16 hours at room temperature. Evaporation of the solvent gave a gum which was dissolved in acetone (20 ml.) and treated with maleic acid (1 g.) in acetone (20 ml.). The precipitate was filtered off and recrystallized from ethanol to give 2-guanidino-4-[2-(3-methylthioureido)ethylthiomethyl]thiazole hydrogen maleate as a pale brown solid (0.420 g.). Found: C, 37.4; H, 4.7; N, 19.8; S, 22.7. C13H20N6S3O4 requires C, 37.14; H, 4.76; N, 20.00; S, 22.85%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04347370
Source datasetuspto-grants-1982_08
ORD IDord-b5d658044a8749658f93d82fcbc613f6
Source noteuspto-grants-1982_08