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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 274044Generated: October 30, 2026

HCID 18007303, compound → HCID 18007284, compound

https://huagongshe.com/reaction/274044

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 18007303HCID 18007303—
SolventHydrogen BromideHCID 260—
ProductHCID 18007284HCID 1800728466.7%

Reaction Conditions

Temperature130 °C

Reaction Steps

A mixture of N-benzyl-3-methoxy-6,7,8,9-tetrahydro-5H-benzocyclohepten-6-amine (3.0 g) and 47% hydrobromic acid (106 ml) was stirred at 130° C. for 1.5 hours. After cooling, the reaction mixture was concentrated in vacuo. To the residue was added 28% ammonium hydroxide, and the whole was extracted once with ethyl acetate. The extract was washed twice with brine, dried over anhydrous sodium sulfate, and concentrated in vacuo. The residue was purified by column chromatography on silica gel (gradient elution; chloroform-methanol; 25:1 to 15:1) to give 8-benzylamino-6,7,8,9-tetrahydro-5H-benzocyclohepten-2-ol (1.9 g) as an oil, which solidified on standing.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05387710
Source datasetuspto-grants-1995_02
ORD IDord-20b978147d574123a3ff71ab03c3d2bd
Source noteuspto-grants-1995_02