Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1872383Generated: November 1, 2026

Sodium Carbonate → HCID 21182492, compound

https://huagongshe.com/reaction/1872383

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium CarbonateHCID 10340—
Reactant4-Methoxycarbonylphenylboronic acidHCID 2734369—
ReactantHCID 21182355HCID 21182355—
CatalystHCID 178418397HCID 178418397—
Solvent1,2-DimethoxyethaneHCID 8071—
ProductHCID 21182492HCID 2118249222.2%

Reaction Conditions

Temperature80 °C

Reaction Steps

To a suspension of 4-Methoxycarbonylphenyl boronic acid (648 mg) and 4-iodo-1-heptylpyrazole (876 mg) and Pd(PPh3)4 (173 mg) in 1,2-dimethoxyethane (10 ml) was added 2M Na2CO3 aq. (3.6 ml). The reaction mixture was stirred at 80° C. for 2 hours under N2 atmosphere, and poured into ice-water and extracted with ethyl acetate. The organic layer was washed with brine, and dried over MgSO4. The solvent was removed under pressure. The residue was subjected to column-chromatography on silica gel 60 (Merk) and eluted with n-hexane/ethyl acetate (80:20). The fractions containing the object compound were combined and evaporated under reduced pressure to give 1-heptyl-4-(4-methoxycarbonylphenyl)pyrazole (0.20 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06107458
Source datasetuspto-grants-2000_08
ORD IDord-20936c9d14804cd9b3219ebbc653d735
Source noteuspto-grants-2000_08