Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 721553Generated: October 30, 2026

1,2-Ethanediamine, N1,N1-bis(1-methylethyl)- → HCID 21890121, compound

https://huagongshe.com/reaction/721553

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-Ethanediamine, N1,N1-bis(1-methylethyl)-HCID 8459—
ReactantTriethylamineHCID 8471—
ReactantTriphosgeneHCID 94429—
Reactant4-(6,7-Dimethoxyquinazolin-4-yloxy)anilineHCID 11616363—
SolventWaterHCID 962—
SolventChloroformHCID 6212—
ProductHCID 21890121HCID 2189012137%

Reaction Steps

4-[(6,7-Dimethoxy-4-quinazolinyl)oxy]aniline (100 mg) was dissolved in chloroform (10 ml) and triethylamine (1 ml) to prepare a solution. A solution of triphosgene (151 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 (74 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 (58 mg, yield 37%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07135466B2
Source datasetuspto-grants-2006_11
ORD IDord-4fc9d99e84bb4bb7a9e9945df1639375
Source noteuspto-grants-2006_11