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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2414823Generated: November 1, 2026

Hydrochloric Acid → HCID 69764691, compound

https://huagongshe.com/reaction/2414823

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPotassium HydroxideHCID 14797—
ReactantDichloromethane methanolHCID 21226129—
ReactantHCID 69763899HCID 69763899—
SolventBenzyl AlcoholHCID 244—
SolventMethanolHCID 887—
ProductHCID 69764691HCID 69764691—

Reaction Conditions

Temperature160 °C

Reaction Steps

To a solution of 7-cyano-1-(3,4-dichloro-benzyl)-6-methoxy-3,4-dihydro-1H-isoquinoline-2-carboxylic acid tert-butyl ester (3.60 g, 8.06 mmol) in benzyl alcohol (10 mL) is added KOH (3.00 g), and the reaction mixture is stirred at 160° C. for 0.5 h. The reaction mixture is allowed to cool to rt and is acidified with 2 M aqueous HCl. The reaction mixture is partitioned with EtOAc (3×20 mL). The combined organic phases are washed with brine, dried over MgSO4, filtered, and evaporated to yield a yellow oil. Chromatography over silica gel with CH2Cl2:MeOH 19:1 and then with MeOH provides the title compound as yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06815451B2
Source datasetuspto-grants-2004_11
ORD IDord-79e2adb4ba0047dfbc8319a8c56531d8
Source noteuspto-grants-2004_11