Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1878640Generated: October 31, 2026

Potassium Carbonate → 3-(3-Methoxyphenyl)-N1-[(4-methoxyphenyl)methyl]-N7,N7-dimethyl-1,7-isoquinolinediamine

https://huagongshe.com/reaction/1878640

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant4-MethoxybenzylamineHCID 75452—
ReactantHCID 78357864HCID 78357864—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
Product3-(3-Methoxyphenyl)-N1-[(4-methoxyphenyl)methyl]-N7,N7-dimethyl-1,7-isoquinolinediamineHCID 6929893347%

Reaction Steps

A mixture of 1-chloroimine isoquinoline II (500 mg, 1.6 mmol), 4-methoxy benzylamine (877 mg, 6.4 mmol), and potassium carbonate (2 g, 15 mmol) in DMF was refluxed overnight. The reaction mixture was cooled to room temperature, diluted with water, and extracted with ethyl acetate. The combined organic extracts were washed with water, dried, and concentrated. The residue was purified by column chromatography on silica gel with n-hexane-ethyl acetate (3:1) to afford compound III (310 mg, 47%). 1H NMR (300 MHz, CDCl3) δ: 7.74-7.62 (m, 3H), 7.45-7.33 (m, 4H), 7.22 (m, 1H), 6.92 (m, 3H), 6.66 (m, 1H), 5.24 (s, 1H), 4.91 (d, 2H), 3.91 (s, 3H), 3.85 (s, 3H), 3.09 (s, 6H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08314123B2
Source datasetuspto-grants-2012_11
ORD IDord-2a8a3ccf837c4bafa7e7c27798240244
Source noteuspto-grants-2012_11