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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 127917Generated: October 31, 2026

Sulfuric Acid → HCID 20523213, compound

https://huagongshe.com/reaction/127917

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantPotassium NitrateHCID 24434—
ReactantHCID 12838039HCID 12838039—
ProductHCID 20523213HCID 20523213—

Reaction Steps

A solution of 20.9 g. (0.1 mole) of 2-acetyl-7-chloro-1,2,3,4-tetrahydroisoquinoline in 100 ml. of concentrated sulfuric acid is treated with 10 g. (0.1 mole) of potassium nitrate dissolved in 150 ml. of concentrated sulfuric acid. The mixture is stirred for one hour, quenched on ice, made alkaline with ammonium hydroxide and filtered to yield 2-acetyl-7-chloro-6-nitro-1,2,3,4-tetrahydroisoquinoline.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04258049
Source datasetuspto-grants-1981_03
ORD IDord-d9986cae165245eea59c4f1fc477a071
Source noteuspto-grants-1981_03