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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 456616Generated: October 31, 2026

Pyrrole → (2-Chloropyridin-3-yl)(1H-pyrrol-2-yl)methanone

https://huagongshe.com/reaction/456616

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyrroleHCID 8027—
Reactant2-Chloronicotinoyl chlorideHCID 2774541—
ReactantAluminum(III) ChlorideHCID 6451240—
SolventDichloromethaneHCID 6344—
SolventEthyl AcetateHCID 8857—
Product(2-Chloropyridin-3-yl)(1H-pyrrol-2-yl)methanoneHCID 13160528—

Reaction Conditions

Temperature0 °C

Reaction Steps

A solution of 2-chloronicotinoyl chloride (1 eq.) in dichloromethane (10 mL) was added slowly to a mixture of pyrrole (1.5 eq.) (Aldrich, Milwaukee, Wis.) and aluminum chloride (3.5 g, 1 eq.) in dichloromethane (8 mL) at 0° C. The mixture was stirred at 0° C. for 10 mins and at room temperature for 30 mins. The reaction was diluted with ethyl acetate, washed with brine, dried and concentrated. The residue was purified on a silica gel column to give 2.27 g of (2-chloro-pyridin-3-yl)-(1H-pyrrol-2-yl)-methanone.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07186716B2
Source datasetuspto-grants-2007_03
ORD IDord-5133d340ca3f40efb95cb91db39b614c
Source noteuspto-grants-2007_03