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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2035981Generated: November 1, 2026

Water → 9-(4-Butoxyphenyl)-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxide

https://huagongshe.com/reaction/2035981

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantEthanesulfonylchloride, 2-chloro-HCID 15385—
ReactantSodium hydrideHCID 24758—
Reactant3-(4-Butoxyphenyl)pyridin-2-amineHCID 66748379—
SolventTetrahydrofuranHCID 8028—
SolventHexaneHCID 8058—
Product9-(4-Butoxyphenyl)-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxideHCID 66748057—

Reaction Steps

A solution of 3-(4-butoxyphenyl)pyridin-2-amine (690 mg) in THF (dry) (5 mL) was added to a suspension of NaH (60%, 569 mg) and 2-chloroethanesulfonyl chloride (0.893 mL) in THF (dry) (5 mL) at 0° C. The mixture was stirred at room temperature overnight. Water and hexane were added to give a white precipitate. The precipitate was collected by filtration and washed with water and EtOAc, and then recrystallized from IPE-EtOH to give the title compound (502 mg) as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08575154B2
Source datasetuspto-grants-2013_11
ORD IDord-1b79cd9458584c21a0223baa8c96fbb8
Source noteuspto-grants-2013_11