Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1740974Generated: October 30, 2026

Dichloromethane → HCID 21834412, compound

https://huagongshe.com/reaction/1740974

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
ReactantHydrazineHCID 9321—
ReactantHCID 21834442HCID 21834442—
SolventMethanolHCID 887—
ProductHCID 21834412HCID 2183441268.5%

Reaction Steps

To a solution of 4-methyl-2-(2,5-dimethylpyrrol-1-yl)-6-(2-phthalimidoethyl)pyridine (100 mg, 0.28 mmol) in 1.0 mL of methanol under nitrogen at room temperature was added hydrazine (0.018 mL, 0.56 mmol) via syringe. The mixture was stirred at room temperature overnight. Dichloromethane (2.0 mL) was added to the reaction. The precipitate was removed by filtration and washed with another 2 mL of dichloromethane. The combined filtrates were concentrated. The resulting residue was chromatographed on 7 g of silica gel, eluting with 100 mL of 5% methanol/dichloromethane followed by 200 mL of 96:4:1 dichloromethane/methanol/triethylamine to give 44 mg (68% yield) of 6-(2-aminoethyl)-4-methyl-2-(2,5-dimethylpyrrol-1-yl)pyridine as colorless syrup.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05972975
Source datasetuspto-grants-1999_10
ORD IDord-4cd6121c542f4be28c55231ef761fd16
Source noteuspto-grants-1999_10