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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1105494Generated: October 31, 2026

Potassium Carbonate → HCID 20555481, compound

https://huagongshe.com/reaction/1105494

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
ReactantEthyl 2-bromopropionateHCID 79040—
ReactantHCID 20555482HCID 20555482—
SolventMethyl Ethyl KetoneHCID 6569—
ProductHCID 20555481HCID 2055548179.2%

Reaction Steps

A mixture of 4-[(7-chloro-1,2,4-benzotriazin-3-yl)thio]phenol (1.83 g), ethyl 2-bromopropionate (1.37 g), anhydrous potassium carbonate (0.96 g) and methyl ethyl ketone (50 ml) was heated under reflux for a period of 3 hours. The solvent was removed by distillation under reduced pressure and the residue was partitioned between water and dichloromethane. The organic phase was separated, dried (over anhydrous magnesium sulfate) and the solvent was removed by distillation under reduced pressure to give a solid. The crude product was purified by chromatography over silica gel (eluent dichloromethane) to give the title compound (1.95 g) as a crystalline solid, mp 86°-88° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04309211
Source datasetuspto-grants-1982_01
ORD IDord-953495788e62452e96f244dcfcb8e6d5
Source noteuspto-grants-1982_01