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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2420086Generated: November 1, 2026

Butyl bromide → 3-Butyl-7,8-dimethoxy-1-phenyl-2,3,4,5-tetrahydro-1H-3-benzazepine

https://huagongshe.com/reaction/2420086

Reaction equation

Participants

RoleNameHCIDCharge
ReactantButyl bromideHCID 8002—
ReactantPotassium HydroxideHCID 14797—
Reactant1H-3-Benzazepine, 2,3,4,5-tetrahydro-7,8-dimethoxy-1-phenyl-HCID 10540963—
SolventMethanolHCID 887—
Product3-Butyl-7,8-dimethoxy-1-phenyl-2,3,4,5-tetrahydro-1H-3-benzazepineHCID 20387937—

Reaction Steps

A mixture of 4.32 g. (0.0154 mole) of 7,8-dimethoxy-1-phenyl-2,3,4,5-tetrahydro-1H-3-benzazepine, 0.02 mole of n-butyl bromide and 0.02 mole of potassium hydroxide is dissolved in 120 ml. of dry methanol and refluxed for 48 hours. The reaction mixture is evaporated to dryness, taken up in ethyl acetate and filtered to remove inorganic salts. The filtrate is washed with water, dried and evaporated to give 3-n-butyl-7,8-dimethoxy-1-phenyl-2,3,4,5-tetrahydro-1H-3-benzazepine as an oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04108989
Source datasetuspto-grants-1978_08
ORD IDord-3b15b2a55c0e49e884dfc8fc19bfff99
Source noteuspto-grants-1978_08