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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 237623Generated: October 26, 2026

1,3,5-Trimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole → 4-(4-Bromo-3,5-dimethyl-phenyl)-1,3,5-trimethyl-pyrazole

https://huagongshe.com/reaction/237623

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,3,5-Trimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazoleHCID 2795311—
Reactant2-Bromo-5-iodo-1,3-dimethylbenzeneHCID 20748037—
Product4-(4-Bromo-3,5-dimethyl-phenyl)-1,3,5-trimethyl-pyrazoleHCID 86697295—

Reaction Steps

The title compound is prepared from 4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1,3,5-trimethyl-pyrazole and 2-bromo-5-iodo-1,3-dimethyl-benzene following a procedure analogous to that described in Step 1 of Intermediate 56. LC (method 7): tR=1.09 min; Mass spectrum (ESI+): m/z=293/295 (Br) [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08642585B2
Source datasetuspto-grants-2014_02
ORD IDord-b00ba484e47d4481b0ce0ecc164820ae
Source noteuspto-grants-2014_02