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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2090342Generated: October 30, 2026

Methanol → 7-Bromo-3-methyl-1,2,3,4-tetrahydroisoquinoline

https://huagongshe.com/reaction/2090342

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantTrimethylsilyl iodideHCID 85247—
ReactantHCID 59402311HCID 59402311—
SolventDichloromethaneHCID 6344—
Product7-Bromo-3-methyl-1,2,3,4-tetrahydroisoquinolineHCID 44405495—

Reaction Conditions

Temperature50 °C

Reaction Steps

Iodotrimethylsilane (0.982 mL, 0.00690 mol, Aldrich, Cat. No. 195529) was added to a solution of methyl 7-bromo-3-methyl-3,4-dihydroisoquinoline-2(1H)-carboxylate (490 mg, 0.0017 mol) in methylene chloride (10 mL) and the reaction was stirred at 50° C. for 2 h. The reaction was cooled to r.t. and anhydrous methanol (2 mL) was added. The reaction mixture was stirred for additional 5 min, and the volatiles were removed under reduced pressure. The residue was treated with diethyl ether and filtered. The solid was washed with ether, dried under vacuum to provide the desired compound which was directly used in the next step reaction without further purification. LCMS (M+H)+: m/z=226.2.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08436008B2
Source datasetuspto-grants-2013_05
ORD IDord-94d7b13150fe4d1c80b9e6c88d58487a
Source noteuspto-grants-2013_05