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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2180941Generated: October 31, 2026

1,2,3,4-Tetrahydroisoquinoline → 3-Chloro-1-(3,4-dihydroisoquinolin-2(1H)-yl)propan-1-one

https://huagongshe.com/reaction/2180941

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2,3,4-TetrahydroisoquinolineHCID 7046—
Reactant3-Chloropropionyl chlorideHCID 69364—
SolventTetrahydrofuranHCID 8028—
Product3-Chloro-1-(3,4-dihydroisoquinolin-2(1H)-yl)propan-1-oneHCID 24642759.5%

Reaction Conditions

Temperature10 °C

Reaction Steps

A solution of 3-chloropropanoyl chloride (10.5 g) in tetrahydrofuran (400 mL) was cooled down to 6° C. followed by the addition of a solution of 3,4-dihydro-1H-isoquinoline (10.0 g). The resulting mixture was stirred at 10° C. for 30 min, filtered and concentrated in vacuo. The residue was subjected to a standard aqueous work up procedure followed by purification by flash chromatography on silicagel (eluent:ethyl acetate/heptane 1:1) to give the product as a colourless oil (10 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06890916B2
Source datasetuspto-grants-2005_05
ORD IDord-79d35594064e44f882d041071612f213
Source noteuspto-grants-2005_05