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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1963137Generated: October 29, 2026

Hydrochloric Acid → HCID 66731716, compound

https://huagongshe.com/reaction/1963137

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPotassium CarbonateHCID 11430—
Reactant4-Chlorophenylboronic acidHCID 74299—
Reactant2-Bromo-isonicotinic acid methyl esterHCID 3847768—
CatalystPalladium ChlorideHCID 24290—
SolventMethanolHCID 887—
Solventtert-Butyl methyl etherHCID 15413—
ProductHCID 66731716HCID 66731716128.6%

Reaction Conditions

Temperature100 °C

Reaction Steps

Methyl 2-bromoisonicotinate (3.39 g, 15.69 mmol), 4-chlorophenylboronic acid (3.68 g, 23.54 mmol), potassium carbonate (3.25 g, 23.54 mmol) and PdCl2 (dppf) (0.341 g, 0.47 mmol) were mixed in methanol (30 mL) in two separate 20 mL microwave vials. The vials were capped and heated at 100° C. for 10 min in a single node microwave reactor. Water and DCM were added and the phases were separated. The water phase (pH 9) was extracted with DCM and the combined organic phase washed with brine, passed through a phase separator and evaporated to yield an orange solid. The solid was dissolved in MTBE, then HCl (4 M in dioxane) was added to give crude methyl 2-(4-chlorophenyl)isonicotinate hydrochloride (4.3 g). MS m/z 248 (M+H)+

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08415378B2
Source datasetuspto-grants-2013_04
ORD IDord-d9d4d3b1fee840719d6dc24ba968faa9
Source noteuspto-grants-2013_04