Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 648607Generated: October 28, 2026

Hydrochloric Acid → HCID 20145058, compound

https://huagongshe.com/reaction/648607

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPotassium CarbonateHCID 11430—
ReactantN,N-DimethylethylenediamineHCID 66053—
ReactantHCID 20144988HCID 20144988—
SolventEthylene GlycolHCID 174—
SolventWaterHCID 962—
ProductHCID 20145058HCID 2014505868.7%

Reaction Conditions

Temperature80 °C

Reaction Steps

To a solution of ethyl 2-amino-5-(2-pyridyl)-4-thiazolecarboxylate (2.49 g) in ethyleneglycol (10 ml) were added N,N-dimethylethylenediamine (1.76 g) and 36% hydrochloric acid (0.5 ml) and the mixture was stirred at 80° C. for 2 hours. The reaction mixture was poured into water (50 ml), adjusted to pH 8 with aqueous potassium carbonate and extracted with chloroform. The extract was washed with brine, dried over magnesium sulfate and evaporated in vacuo. The residue was recrystallized from acetonitrile to give 2-amino-4-[N-[2-(N,N-dimethylamino)ethyl]carbamoyl]-5-(2-pyridyl)thiazole (2.0 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04735957
Source datasetuspto-grants-1988_04
ORD IDord-2160203f45524809ade017706ea50f28
Source noteuspto-grants-1988_04