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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1288479Generated: November 2, 2026

Methanol → 7,8-Dichloro-2-ethyl-1,2,3,4-tetrahydroisoquinoline hydrochloride

https://huagongshe.com/reaction/1288479

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantDiboronHCID 6328200—
Reactant1-(7,8-Dichloro-3,4-dihydroisoquinolin-2(1H)-yl)ethan-1-oneHCID 12595100—
SolventTetrahydrofuranHCID 8028—
Product7,8-Dichloro-2-ethyl-1,2,3,4-tetrahydroisoquinoline hydrochlorideHCID 21393876—

Reaction Steps

2-Acetyl-7,8-dichloro-1,2,3,4-tetrahydroisoquinoline is treated with excess diborane in tetrahydrofuran and refluxed for 16 hours. Methanol is added to destroy excess diborane and the solvent is removed in vacuo. The residue is dissolved in ether, treated with hydrogen chloride and filtered to give 7,8-dichloro-2-ethyl-1,2,3,4-tetrahydroisoquinoline hydrochloride.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03988339
Source datasetuspto-grants-1976_10
ORD IDord-63308174426e4e1cbcb81f9b6801a2e7
Source noteuspto-grants-1976_10