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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 624851Generated: October 25, 2026

Cesium carbonate → 5-Cyclopropyl-6-(4-fluoro-benzyl)-pyridine-2-carbonitrile

https://huagongshe.com/reaction/624851

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
Reactant(4-Fluorobenzyl)boronic acidHCID 45090593—
Reactant6-Bromomethyl-5-cyclopropyl-pyridine-2-carbonitrileHCID 86674770—
CatalystBis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)HCID 178418228—
Solvent1,4-DioxaneHCID 31275—
Product5-Cyclopropyl-6-(4-fluoro-benzyl)-pyridine-2-carbonitrileHCID 7108745979.3%

Reaction Conditions

Temperature110 °C

Reaction Steps

A mixture of 6-bromomethyl-5-cyclopropyl-pyridine-2-carbonitrile (0.1 g, 0.4 mmol), 4-fluoro-benzylboronic acid (CAN 1765-93-1, 0.1 g, 0.7 mmol), Pd(dppf)Cl2 (CAN 95464-05-4, 50 mg, 0.068 mmol), Cs2CO3 (0.2 g, 0.6 mmol) in 1.4-dioxane (10 mL) was stirred for 12 h at 110° C. under a nitrogen atmosphere. The mixture was filtered, concentrated and purified by flash column chromatography (silica gel, 3 g, eluting with 25% ethyl acetate in petroleum ether) to give the title compound (80 mg, 75%) as yellow solid; MS (EI): m/e=253.2 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09303012B2
Source datasetuspto-grants-2016_04
ORD IDord-8df06f2758b844d596d5e8edc5fab8ca
Source noteuspto-grants-2016_04