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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1796113Generated: October 29, 2026

4-Chloro-2-(1,1-difluoroethyl)pyrimidine → 3-[2-(1,1-Difluoroethyl)pyrimidin-4-yl]-7-(1-methyl-1-triethylsilanyloxyethyl)imidazo[1,2-alpha]pyrimidine

https://huagongshe.com/reaction/1796113

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Chloro-2-(1,1-difluoroethyl)pyrimidineHCID 22180773—
Reactant3-Bromo-7-(1-methyl-1-triethylsilanyloxyethyl)imidazo[1,2-alpha]pyrimidineHCID 69559848—
Product3-[2-(1,1-Difluoroethyl)pyrimidin-4-yl]-7-(1-methyl-1-triethylsilanyloxyethyl)imidazo[1,2-alpha]pyrimidineHCID 69560570—

Reaction Steps

3-Bromo-7-(1-methyl-1-triethylsilanyloxyethyl)imidazo[1,2-α]pyrimidine (567 mg, 1.4 mmol) and 4-chloro-2-(1,1-difluoroethyl)pyrimidine (209 mg, 1.17 mmol) were reacted together as described in Example 39, Step 1. Purification by column chromatography on silica using 3% MeOH/CH2Cl2 gave 3-[2-(1,1-difluoroethyl)pyrimidin-4-yl]-7-(1-methyl-1-triethylsilanyloxyethyl)imidazo[1,2-α]pyrimidine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07030128B2
Source datasetuspto-grants-2006_04
ORD IDord-df26a0f452b84f729f5f244aab7ad252
Source noteuspto-grants-2006_04