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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 474338Generated: October 29, 2026

Triethylamine → 5-chloro-N-(3-(3-chlorophenyl)-1-methyl-1H-pyrazol-4-yl)pyrazolo[1,5-a]pyrimidine-3-carboxamide

https://huagongshe.com/reaction/474338

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant5-Chloropyrazolo[1,5-a]pyrimidine-3-carbonyl chlorideHCID 58063136—
Reactant3-(3-chlorophenyl)-1-methyl-1H-pyrazol-4-amineHCID 58063415—
SolventDichloromethaneHCID 6344—
Product5-chloro-N-(3-(3-chlorophenyl)-1-methyl-1H-pyrazol-4-yl)pyrazolo[1,5-a]pyrimidine-3-carboxamideHCID 71512251—

Reaction Steps

To a solution of 5-chloropyrazolo[1,5-a]pyrimidine-3-carbonyl chloride (0.166 g, 0.768 mmol) in dichloromethane (8 mL) was added 3-(3-chlorophenyl)-1-methyl-1H-pyrazol-4-amine (73.6 mg, 0.354 mmol) and triethylamine (0.20 mL, 1.4 mmol) at room temperature. After 1 hour, the reaction mixture was partitioned between dichloromethane and half-saturated aqueous sodium bicarbonate solution. The organic layer was dried over magnesium sulfate and concentrated to yield 5-chloro-N-(3-(3-chlorophenyl)-1-methyl-1H-pyrazol-4-yl)pyrazolo[1,5-a]pyrimidine-3-carboxamide, which is carried forward without purification. LCMS (ESI) m+H=387.1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08637526B2
Source datasetuspto-grants-2014_01
ORD IDord-4d1010f529f14f10908305a20a0fe71e
Source noteuspto-grants-2014_01