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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2250578Generated: November 3, 2026

Chlorosuccinimide → HCID 90775215, compound

https://huagongshe.com/reaction/2250578

Reaction equation

Participants

RoleNameHCIDCharge
ReactantChlorosuccinimideHCID 31398—
ReactantEthyl[4-(4-fluorophenyl)-2-methylpyrrolo[1,2-b]pyridazin-3-yl]acetateHCID 91147555—
SolventTetrahydrofuranHCID 8028—
ProductHCID 90775215HCID 9077521530.6%

Reaction Conditions

Temperature20 °C

Reaction Steps

To a solution of ethyl[4-(4-fluorophenyl)-2-methylpyrrolo[1,2-b]pyridazin-3-yl]acetate (100 mg) in tetrahydrofuran (2 ml) was added N-chlorosuccinimide (43 mg) and the mixture was stirred at 20° C. for 2 hours. The mixture was partitioned between ethyl acetate and water. The organic layer was separated, washed with aqueous ethyl acetate, water and brine, dried over magnesium sulfate, and evaporated. The residue was purified by silica gel column chromatography eluting with a mixture of toluene and ethyl acetate (10:1) to give ethyl[7-chloro-4-(4-fluorophenyl)-2-methylpyrrolo[1,2-b]pyridazin-3-yl]acetate (34 mg) as an yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07317009B2
Source datasetuspto-grants-2008_01
ORD IDord-515acee7f91d452a95e8a7417fa8868f
Source noteuspto-grants-2008_01