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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1925122Generated: October 29, 2026

Ethanolamine → HCID 59233136, compound

https://huagongshe.com/reaction/1925122

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolamineHCID 700—
ReactantMethyl 4-[(chlorocarbonyl)oxy]benzoateHCID 854163—
ReactantHCID 86639817HCID 86639817—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventDichloromethaneHCID 6344—
ProductHCID 59233136HCID 59233136—

Reaction Conditions

Temperature25 °C

Reaction Steps

To a solution of 6-iodoimidazo[1,2-b]pyridazin-2-amine hydrochloride (250 mg, 0.843 mmol) and DMAP (227 mg, 1.855 mmol) in DCM (Volume: 5.0 mL) was added methyl 4-(chlorocarbonyloxy)benzoate (199 mg, 0.927 mmol) at 25° C. The reaction was stirred at 25° C. for 1 hr to provide a dark green heterogeneous mixture which was filtered. The solid was resuspended in DCM (Volume: 5.0 mL), treated with ethanolamine (2M in MeOH, 0.843 mL, 1.686 mmol) at room temperature, and then stirred for an additional 1 hr. The reaction was then evaporated to dryness via rotary evaporation, and the resulting residue was suspended in EtOAc (Volume: 10.0 mL). The mixture was filtered, and the resulting black solid was dried under high vacuum and used without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08178534B2
Source datasetuspto-grants-2012_05
ORD IDord-0d0e0e36fa354325b0445973db45a8d1
Source noteuspto-grants-2012_05