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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 721557Generated: October 31, 2026

1,2-Ethanediamine, N1,N1-bis(1-methylethyl)- → HCID 21889935, compound

https://huagongshe.com/reaction/721557

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-Ethanediamine, N1,N1-bis(1-methylethyl)-HCID 8459—
ReactantTriethylamineHCID 8471—
ReactantTriphosgeneHCID 94429—
Reactant4-[(6,7-Dimethoxy-4-quinazolinyl)oxy]-2-methoxyanilineHCID 21889991—
SolventWaterHCID 962—
SolventChloroformHCID 6212—
ProductHCID 21889935HCID 2188993532.9%

Reaction Steps

4-[(6,7-Dimethoxy-4-quinazolinyl)oxy]-2-methoxyaniline (100 mg) was dissolved in chloroform (10 ml) and triethylamine (1 ml) to prepare a solution. A solution of triphosgene (139 mg) in chloroform was then added to the solution, and the mixture was stirred at room temperature for 10 min. Next, N1,N1-diisopropyl-1,2-ethanediamine (68 mg) was added thereto, and the mixture was further stirred at room temperature for one hr. Water was added to stop the reaction, and the reaction solution was then extracted with chloroform, followed by concentration. The residue was purified on a column using chloroform/methanol to give the title compound (50 mg, yield 32%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07135466B2
Source datasetuspto-grants-2006_11
ORD IDord-303ceb1c1fb649db8429c0cc27bc611a
Source noteuspto-grants-2006_11