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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 52446Generated: October 29, 2026

Triethylamine → 4,4-Dimethyl-2-oxo-1,2,3,4-tetrahydro-7-[(trimethylsilyl)ethynyl]quinoline

https://huagongshe.com/reaction/52446

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant7-Bromo-4,4-dimethyl-3,4-dihydroquinolin-2(1H)-oneHCID 19963707—
ReactantHCID 19963711HCID 19963711—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
CatalystHCID 178418476HCID 178418476—
Product4,4-Dimethyl-2-oxo-1,2,3,4-tetrahydro-7-[(trimethylsilyl)ethynyl]quinolineHCID 1996373274%

Reaction Steps

2.2398 g (8.8 mmol) of 4,4-dimethyl-2-oxo-1,2,3,4-tetrahydro-7-bromoquinoline (Compound 18), 371 mg (1.9 mmol) of CuI, 1.087 g (1.5 mmol) of Pd(PPh3)2Cl2, 35 ml (0.251 mol) of triethylamine and 4.0 ml (28.0 mmol) of trimethylacetylene were reacted substantially in accordance with the procedure used for the preparation of 4,4-dimethyl-2-oxo-1,2,3,4-tetrahydro-6-[(trimethylsilyl)ethynyl]quinoline (Compound 2) to give the title compound as pale orange solids (74%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05616712
Source datasetuspto-grants-1997_04
ORD IDord-cc3be286e8cd48f59b1ed630a6448864
Source noteuspto-grants-1997_04