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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1409973Generated: October 26, 2026

Ethynylpyridine → Ethyl 3-(pyridin-2-yl)-1H-pyrazole-5-carboxylate

https://huagongshe.com/reaction/1409973

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthynylpyridineHCID 137268—
ReactantDiazoethylacetateHCID 54217441—
ReactantEthyl 3-(trimethylsilyl)-1H-pyrazole-5-carboxylateHCID 178469409—
ProductEthyl 3-(pyridin-2-yl)-1H-pyrazole-5-carboxylateHCID 612416—

Reaction Steps

Was prepared in a similar way as ethyl 3-(trimethylsilyl)-1H-pyrazole-5-carboxylate using diazoethyl acetate (Purchased from Aldrich) and 2-ethynyl-pyridine (Purchased from Aldrich).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08921401B2
Source datasetuspto-grants-2014_12
ORD IDord-5dc13392560243be88821532bf647aad
Source noteuspto-grants-2014_12