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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2088734Generated: November 4, 2026

Hydrochloric Acid → HCID 67222804, compound

https://huagongshe.com/reaction/2088734

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthylamineHCID 6341—
ReactantHCID 71650875HCID 71650875—
SolventChloroformHCID 6212—
ProductHCID 67222804HCID 67222804—

Reaction Steps

7.65 mL of ethylamine was dropwise added to a chloroform (15 mL) solution of 1.08 g of 2-{2-[(methylsulfonyl)oxyethyl}-4-nitrobenzylmethanesulfonate, which had been produced according to the method described in Journal of Organic Chemistry, Vol. 63, pp. 4116-4119, and stirred for 12 hours. 1 N hydrochloric acid was added to the reaction solution, and stirred, and then the aqueous layer was separated. Aqueous 5 N sodium hydroxide solution was added to the resulting aqueous layer, extracted with chloroform, and the organic layer was dried with anhydrous sodium sulfate, and the solvent was evaporated away. The crude product was purified through silica gel column chromatography (hexane/ethyl acetate) to obtain 210 mg of 2-ethyl-6-nitro-1,2,3,4-tetrahydroisoquinoline as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08436004B2
Source datasetuspto-grants-2013_05
ORD IDord-b25c7d43562a4a5496c2d13216ff3a7c
Source noteuspto-grants-2013_05