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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1012111Generated: November 1, 2026

1,2-Dichloroethane → HCID 178499177, compound

https://huagongshe.com/reaction/1012111

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-DichloroethaneHCID 11—
ReactantP-Toluic AcidHCID 7470—
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantHCID 178499176HCID 178499176—
SolventDimethylformamideHCID 6228—
ProductHCID 178499177HCID 17849917793.8%

Reaction Steps

A mixture of p-toluic acid (272 mg), 4-amino-1H-pyrazole-3-carboxylic acid methyl ester (310 mg), EDC (460 mg) and HOBt (324 mg) in DMF (8 ml) was stirred at ambient temperature for 48 h. The mixture was reduced in vacuo, partitioned between EtOAc and saturated aqueous NaHCO3 and then the organic portion washed with brine, dried (MgSO4) and reduced in vacuo to give 4-(4-methyl-benzoylamino)-1H-pyrazole-3-carboxylic acid methyl ester (486 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07977477B2
Source datasetuspto-grants-2011_07
ORD IDord-2c7ca66bdd3f423182c5b67f8a72b753
Source noteuspto-grants-2011_07