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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1030207Generated: November 2, 2026

Sodium Hydroxide → HCID 19822323, compound

https://huagongshe.com/reaction/1030207

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
Reactant1-Butyne, 3-chloro-3-methyl-HCID 70679—
ReactantBenzenesulfonamide, 4-hydroxy-N,N-dimethyl-HCID 84760—
CatalystTetrabutylammonium hydrogen sulfateHCID 94433—
SolventWaterHCID 962—
SolventDichloromethaneHCID 6344—
ProductHCID 19822323HCID 1982232337.1%

Reaction Steps

A two-phase mixture of 4-hydroxy-N,N-dimethyl-benzenesulfonamide (13 g), 3-chloro-3-methyl-1-butyne (33 g), tetra-n-butylammonium hydrogen sulfate (22 g), and sodium hydroxide (21 g) in a mixture of dichloromethane (195 ml) and water (97.5 ml) was vigorously stirred at room temperature for 48 hours. The organic layer was separated, washed with water and brine, dried over anhydrous magnesium sulfate, and concentrated. The residue was added to n-hexane and pulverized to give N,N-dimethyl-4-(1,1-dimethyl-2-propynyloxy)benzenesulfonamide (6.4 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05104890
Source datasetuspto-grants-1992_04
ORD IDord-6e8e704a8b664dc186c1c06c50f4ad60
Source noteuspto-grants-1992_04