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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1859518Generated: October 31, 2026

Trityl chloride → 4-Iodo-1-(triphenylmethyl)-1H-pyrazole

https://huagongshe.com/reaction/1859518

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrityl chlorideHCID 6456—
ReactantTriethylamineHCID 8471—
Reactant4-IodopyrazoleHCID 77022—
SolventDimethylformamideHCID 6228—
Product4-Iodo-1-(triphenylmethyl)-1H-pyrazoleHCID 15324479—

Reaction Steps

The title compound was prepared by combining 4-iodopyrazole (10 g, 52 mmol), triphenylmethyl chloride (14.4 g, 51.6 mmol), triethylamine (NEt3) (7.2 mL, 52 mmol), and DMF (80 mL). After stirring overnight, the mixture was poured onto ice water. The precipitated solid was collected and recrystallized to give the title compound as a solid, mp 193-194° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06528510B1
Source datasetuspto-grants-2003_03
ORD IDord-741dea39f16140c18763e6370f730982
Source noteuspto-grants-2003_03