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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 13497Generated: October 25, 2026

Sodium Carbonate → 3-Chloro-4-(2-methyl-5-nitrophenyl)pyridine

https://huagongshe.com/reaction/13497

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium CarbonateHCID 10340—
Reactant2-Bromo-4-nitrotolueneHCID 82189—
Reactant3-Chloro-4-pyridineboronic acid hydrateHCID 17998756—
CatalystBis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)HCID 178418228—
SolventWaterHCID 962—
Solvent1,2-DimethoxyethaneHCID 8071—
Product3-Chloro-4-(2-methyl-5-nitrophenyl)pyridineHCID 22040820—

Reaction Conditions

Temperature90 °C

Reaction Steps

Nitrogen was bubbled through a solution of 2-bromo-1-methyl-4-nitrobenzene (1 eq) in dimethoxyethane and water (3:1) for 0.5 h. Bis(diphenylphosphino)ferrocene Palladium(II)chloride (0.05 eq) followed by 3-chloro-4-pyridine boronic acid hydrate (1 eq) and sodium carbonate (3 eq) was added and the mixture was heated to 90° C. for 16 h under nitrogen. The reaction mixture was concentrated and partitioned between ethyl acetate and water. The organic layer was washed with brine and dried with sodium sulfate and concentrated. Purification on silica gel gave 3-chloro-4-(2-methyl-5-nitrophenyl)pyridine. MS: MH+=248.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07728010B2
Source datasetuspto-grants-2010_06
ORD IDord-b33daae7328346a6bc77c365a8963751
Source noteuspto-grants-2010_06