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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1164543Generated: October 29, 2026

Benzoic Acid → 37969-58-7

https://huagongshe.com/reaction/1164543

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzoic AcidHCID 243—
ReactantHCID 12821122HCID 12821122—
ReactantLithium iodide--water (1/1/3)HCID 23688288—
SolventMethanolHCID 887—
Product37969-58-7HCID 20511252—

Reaction Steps

A mixture of 1-(4-chlorophenoxy)methyl-6-hydroxy-7-methoxy-1,2,3,4-tetrahydroisoquinoline (100 mg), lithium iodide trihydrate (150 mg) and benzoic acid (38 mg) was heated in an oil bath of 200° to 210° C. for 0.5 hour. After the reaction, the precipitated solid was dissolved in methanol absorbed with hydrogen chloride, and then insoluble material was filtered off. The filtrate was concentrated, and to the residue was added a small amount of ether, and the mixture was allowed to stand. The precipitated crystals were collected by filtration, and dried to give 1-(4-chlorophenoxy)methyl-6,7-dihydroxy-1,2,3,4-tetrahydroisoquinoline hydrochloride, mp 226° C. The product was identified with a sample by I.R. spectrum and N.M.R. spectrum.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04370332
Source datasetuspto-grants-1983_01
ORD IDord-3d573704b9d24859bc0c00f851f80e38
Source noteuspto-grants-1983_01