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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1405659Generated: November 1, 2026

Ethanesulfonylchloride, 2-chloro- → 9-{2-[4-(1-Methylethyl)phenyl]ethyl}-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxide

https://huagongshe.com/reaction/1405659

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanesulfonylchloride, 2-chloro-HCID 15385—
ReactantSodium hydrideHCID 24758—
ReactantSodium BicarbonateHCID 516892—
Reactant3-{2-[4-(1-Methylethyl)phenyl]ethyl}pyridin-2-amineHCID 64135037—
SolventTetrahydrofuranHCID 8028—
SolventEthyl AcetateHCID 8857—
Product9-{2-[4-(1-Methylethyl)phenyl]ethyl}-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxideHCID 6674802272.2%

Reaction Steps

A mixture of 3-{2-[4-(1-methylethyl)phenyl]ethyl}pyridin-2-amine (150 mg) in dehydrated THF (5 mL) was added to a mixture of sodium hydride (60%, 125 mg) and 2-chloroethanesulfonyl chloride (305 mg) in dehydrated THF (5 mL) under ice-cooling. The reaction mixture was stirred at room temperature for 2 hr, and saturated aqueous sodium hydrogen carbonate solution and ethyl acetate were added. The resulting precipitate was collected by filtration, and washed with water and ethyl acetate to give the title compound (149 mg) as a white solid. The obtained solid was crystallized from acetonitrile and diisopropyl ether to give a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08916551B2
Source datasetuspto-grants-2014_12
ORD IDord-30fdbb0745fb422fb6ea77796fda0773
Source noteuspto-grants-2014_12