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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1783711Generated: October 30, 2026

2-Chloroethyl methyl sulfide → 4-Bromo-2-isopropyl-7-(2-methylsulfanyl-ethoxy)-2H-phthalazin-1-one

https://huagongshe.com/reaction/1783711

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Chloroethyl methyl sulfideHCID 10965—
ReactantPotassium CarbonateHCID 11430—
Reactant7-Hydroxy-2-Isopropyl-4-bromo-2H-phthalazin-1-oneHCID 136372992—
SolventDimethylformamideHCID 6228—
Product4-Bromo-2-isopropyl-7-(2-methylsulfanyl-ethoxy)-2H-phthalazin-1-oneHCID 6897942230%

Reaction Conditions

Temperature100 °C

Reaction Steps

To a solution of 7-hydroxy-2-isopropyl-4-bromo-2H-phthalazin-1-one (0.8 g, 0.0028 mol) in DMF (8 ml), was added potassium carbonate (2 g, 0.014 mol). After 5 min, 2-chloroethyl methyl sulfide (0.34 g, 0.0028 mol) was added and the solution was heated to 100° C. for 24 hours. After this time LC-MS indicated the complete consumption of starting material and the mixture was cooled, concentrated under vacuum and purified by flash column chromatography (elution: 70% heptane, 30% EtOAc) to give the title compound (0.3 g, 24% yield) as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07501410B2
Source datasetuspto-grants-2009_03
ORD IDord-5068cdcca80b424da091e6122b654003
Source noteuspto-grants-2009_03