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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1724039Generated: October 30, 2026

1-(4-(Trifluoromethyl)phenyl)ethan-1-one → 5-chloromethyl-1-methyl-3-(4-trifluoromethyl-phenyl)-1H-pyrazole

https://huagongshe.com/reaction/1724039

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-(4-(Trifluoromethyl)phenyl)ethan-1-oneHCID 69731—
Reactant5-Chloromethyl-1-methyl-3-(3,4,5-trimethoxy-phenyl)pyrazoleHCID 18408486—
Product5-chloromethyl-1-methyl-3-(4-trifluoromethyl-phenyl)-1H-pyrazoleHCID 21082224—

Reaction Steps

5-chloromethyl-1-methyl-3-(4-trifluoromethyl-phenyl)-1H-pyrazole was prepared in analogy to the preparation of 5-chloromethyl-1-methyl-3-(3,4,5-trimethoxy-phenyl)-1H-pyrazole described by Kodama et al. (U.S. Pat. No. 6,472,386), but starting from 4-trifluoromethylacetophenone instead of 3′4′5′-trimethoxyacetophenone.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07485652B2
Source datasetuspto-grants-2009_02
ORD IDord-85bfbff89cb743e08cc7267474f48539
Source noteuspto-grants-2009_02