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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1248371Generated: November 1, 2026

Propargyl bromide → 5-Methyl-2-propargyloxyphenylsulfonamide

https://huagongshe.com/reaction/1248371

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPropargyl bromideHCID 7842—
ReactantPotassium CarbonateHCID 11430—
Reactant2-Hydroxy-5-methylbenzenesulfonamideHCID 13321753—
SolventAcetonitrileHCID 6342—
Product5-Methyl-2-propargyloxyphenylsulfonamideHCID 13472948—

Reaction Conditions

Temperature50 °C

Reaction Steps

A mixture of 24.3 g of 2-hydroxy-5-methylphenylsulfonamide, 36.0 g of potassium carbonate, 16.7 g of propargyl bromide and 500 ml of acetonitrile is stirred at 50° C. for 4.5 hours. The reaction mixture is then filtered, and concentrated by evaporation. The yield after recrystallisation from ethyl acetate is 23.9 g of 5-methyl-2-propargyloxyphenylsulfonamide, m.p. 169°-170° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04523944
Source datasetuspto-grants-1985_06
ORD IDord-127d623726274a86a75da5c167078b81
Source noteuspto-grants-1985_06