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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 612449Generated: November 1, 2026

Triethylamine → 3,4-Dihydro-N-2-pyridinyl-2-(1H)-isoquinolinamine

https://huagongshe.com/reaction/612449

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant2-HydrazinopyridineHCID 78645—
ReactantAlpha-bromo-2-(2-bromoethyl)tolueneHCID 816791—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
Product3,4-Dihydro-N-2-pyridinyl-2-(1H)-isoquinolinamineHCID 1959521465.8%

Reaction Steps

Triethylamine (10.0 ml) was added to a solution of 1-bromomethyl-2-(2-bromoethyl)benzene (10 g) and 2-hydrazinopyridine (3.9 g) in dimethylformamide (250 ml), and the mixture was stirred, under nitrogen, at ambient temperature for about 20 mins. The reaction mixture was diluted with water and ethyl acetate. The organic layer was separated, washed with water and brine, dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated. The residue was triturated with ethyl acetate to afford 5.3 g (65%) of product. Recrystallization of the product from ethyl acetate gave the analytical sample, mp 116-117° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06004977
Source datasetuspto-grants-1999_12
ORD IDord-5ac8838528ac4fefad4e4e667a3eca74
Source noteuspto-grants-1999_12