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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1586175Generated: November 3, 2026

Dimethylformamide → HCID 21217699, compound

https://huagongshe.com/reaction/1586175

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantPotassium CarbonateHCID 11430—
Reactant1-Ethyl-1H-pyrazol-5-amineHCID 337310—
Reactant2-Chloro-5-(methylsulphonyl)benzoic acidHCID 2329132—
CatalystCupric acetateHCID 8895—
SolventAcetic AcidHCID 176—
SolventWaterHCID 962—
ProductHCID 21217699HCID 21217699—

Reaction Steps

A mixture of 2-chloro-5-(methylsulfonyl)benzoic acid (5.0 g, 21.4 mmol), 5-amino-1-ethylpyrazole (2.4 g, 21.4 mmol), DMF (50 ml), Cu(OAc)2 (0.5 g) and K2CO3 (2.76 g, 20 mmol) is heated at reflux overnight. The reaction mixture is poured into water, acidified with acetic acid and extracted with CH2Cl2. The CH2Cl2 layer is evaporated to afford N-(1-ethylpyrazol-5-yl)-5-(methylsulfonyl)anthranilic acid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05942520
Source datasetuspto-grants-1999_08
ORD IDord-f3f6429c540c4cf1ab9e3dd2ae277565
Source noteuspto-grants-1999_08