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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 52447Generated: October 30, 2026

Potassium Carbonate → 4,4-Dimethyl-2-oxo-1,2,3,4-tetrahydro-7-ethynylquinoline

https://huagongshe.com/reaction/52447

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
ReactantHCID 19963713HCID 19963713—
Reactant4,4-Dimethyl-2-oxo-1,2,3,4-tetrahydro-7-[(trimethylsilyl)ethynyl]quinolineHCID 19963732—
SolventMethanolHCID 887—
Product4,4-Dimethyl-2-oxo-1,2,3,4-tetrahydro-7-ethynylquinolineHCID 19963716—

Reaction Steps

1.77 g (6.5 mmol) of 4,4-dimethyl-2-oxo-1,2,3,4-tetrahydro-7-[(trimethylsilyl)ethynyl]quinoline (Compound 19), and 175 mg (1.3 mmol) of K2CO3 in 60 ml of methanol were reacted substantially in accordance with the procedure used for the preparation of 4,4-dimethyl-2-oxo-1,2,3,4-tetrahydro-6-ethynylquinoline (Compound 3), to give the title compound as an orange oil. The product was used in the next reaction without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05616712
Source datasetuspto-grants-1997_04
ORD IDord-5eb9db8073734a27af4e570811d5fb39
Source noteuspto-grants-1997_04