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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1878486Generated: October 30, 2026

1H-Pyrazole-4-boronic acid → ethyl 6-(1H-pyrazol-4-yl)imidazo[1,2-a]pyridine-2-carboxylate

https://huagongshe.com/reaction/1878486

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1H-Pyrazole-4-boronic acidHCID 17750278—
ReactantEthyl 6-[1-(triisopropylsilyl)-1H-pyrrol-3-yl]imidazo[1,2-a]pyridine-2-carboxylateHCID 44136203—
Productethyl 6-(1H-pyrazol-4-yl)imidazo[1,2-a]pyridine-2-carboxylateHCID 44136205—

Reaction Conditions

Temperature90 °C

Reaction Steps

This product is prepared under conditions similar to those described for the preparation of Intermediate 15 (step 15.1), replacing the 1-(triisopropylsilyl)pyrrole-3-boronic acid with pyrazole-4-boronic acid and heating at 90° C. by microwave for 37 minutes.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08314109B2
Source datasetuspto-grants-2012_11
ORD IDord-1f30a6bbd21c4299a75589c0ca518c6c
Source noteuspto-grants-2012_11