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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 406826Generated: October 30, 2026

1,2-Dimethoxyethane → HCID 57662937, compound

https://huagongshe.com/reaction/406826

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-DimethoxyethaneHCID 8071—
ReactantTriethylamineHCID 8471—
Reactant2,4-DichloroquinazolineHCID 252886—
Reactant5-Indolylboronic acidHCID 2734361—
SolventWaterHCID 962—
SolventEthyl AcetateHCID 8857—
ProductHCID 57662937HCID 5766293766%

Reaction Conditions

Temperature80 °C

Reaction Steps

To a round bottomed flask containing 2,4-dichloroquinazoline (800 mg, 4.02 mmol) was added indol-5-boronic acid (647 mg, 4.02 mmol), dichloro-((bis-diphenylphosphino)-ferrocenyl)-palladium (II) (complex with methylene chloride, 235 mg, 0.32 mmol), triethylamine (1.5 mL, 10 mmol), dimethoxyethane (20 mL), and water (0.5 mL). The reaction mixture was heated at 80° C. for 14 h, then cooled to rt and diluted with ethyl acetate. The organic layer was washed with saturated sodium bicarbonate, dried over sodium sulfate, filtered, and concentrated on a rotary evaporator. The material was purified by flash column chromatography to afford 2-chloro-4-(1H-indol-5-yl)quinazoline as a brown solid (740 mg, 66%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08754092B2
Source datasetuspto-grants-2014_06
ORD IDord-6c388db2e9c44d3296168e18a9513045
Source noteuspto-grants-2014_06