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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 52443Generated: October 26, 2026

Lithium Hydroxide → 4-[(4,4-Dimethyl-2-heptylthio-3,4-dihydro-6-quinolinyl)ethynyl]benzoic acid

https://huagongshe.com/reaction/52443

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLithium HydroxideHCID 3939—
Reactant4-[(4,4-Dimethyl-2-iso-propoxy-3,4-dihydro-6-quinolinyl)ethynyl]benzoic acidHCID 19963705—
ReactantEthyl 4-[(4,4-dimethyl-2-heptylthio-3,4-dihydro-6-quinolinyl)ethynyl]benzoateHCID 19963725—
SolventEthanolHCID 702—
SolventTetrahydrofuranHCID 8028—
Product4-[(4,4-Dimethyl-2-heptylthio-3,4-dihydro-6-quinolinyl)ethynyl]benzoic acidHCID 19963708—

Reaction Steps

0.0647 g (0.140 mmol) of ethyl 4-[(4,4-dimethyl-2-heptylthio-3,4-dihydro-6-quinolinyl)ethynyl]benzoate (Compound 10) in 2 ml of THF, 1 ml of EtOH was reacted with 2 ml of 1N LiOH substantially in accordance with the procedure used for the preparation of 4-[(4,4-dimethyl-2-iso-propoxy-3,4-dihydro-6-quinolinyl)ethynyl]benzoic acid (Compound 11). Purification by recrystallization in acetonitrile yielded the title compound as a yellow powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05616712
Source datasetuspto-grants-1997_04
ORD IDord-bdfda93f015444d8a9e6d878058ffe32
Source noteuspto-grants-1997_04