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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2176676Generated: October 31, 2026

1-Ethyl-1H-pyrazole-4-boronic acid, pinacol ester → 1-Cyclopropyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

https://huagongshe.com/reaction/2176676

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Ethyl-1H-pyrazole-4-boronic acid, pinacol esterHCID 11379045—
Reactant4-Bromo-1-cyclopropyl-1H-pyrazoleHCID 52142099—
Product1-Cyclopropyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazoleHCID 59327133—

Reaction Steps

The title compound was prepared in the same manner as 1-ethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole starting with 4-bromo-1-cyclopropyl-1H-pyrazole.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09066954B2
Source datasetuspto-grants-2015_06
ORD IDord-f9646bdd7b894da3b25fe9d35a072c6e
Source noteuspto-grants-2015_06