Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1049873Generated: October 31, 2026

Pyridine → HCID 178513700, compound

https://huagongshe.com/reaction/1049873

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
Reactant2-Aminothiophene-3-carboxamideHCID 699495—
ReactantHCID 178521118HCID 178521118—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventAcetonitrileHCID 6342—
ProductHCID 178513700HCID 178513700—

Reaction Conditions

Temperature60 °C

Reaction Steps

A solution of 1H-Pyrazole-3-carbonyl chloride (5 mmol) in MeCN (5 mL) is added drop wise to a solution of 2-amino-thiophene-3-carboxylic acid amide (570 mg, 4 mmol), pyridine (0.5 mL, 6 mmol) and DMAP (25 mg, 0.20 mmol) in MeCN (5 mL). The resulting solution is than stirred at 60° C. over 2 days. Next, the mixture is quenched with aqueous NaHCO3. Evaporation of the MeCN gives a suspension that is filtered, the cake is dried, and used as such.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09382254B2
Source datasetuspto-grants-2016_07
ORD IDord-0b6db1ff1f5a4412bf11f71ee0815bdd
Source noteuspto-grants-2016_07