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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2035975Generated: October 30, 2026

Water → 7-Fluoro-9-(4-phenoxyphenyl)-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxide

https://huagongshe.com/reaction/2035975

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantEthanesulfonylchloride, 2-chloro-HCID 15385—
ReactantSodium hydrideHCID 24758—
ReactantHCID 66749027HCID 66749027—
SolventTetrahydrofuranHCID 8028—
SolventHexaneHCID 8058—
Product7-Fluoro-9-(4-phenoxyphenyl)-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxideHCID 66823883—

Reaction Steps

A solution of 5-fluoro-3-(4-phenoxyphenyl)pyridin-2-amine (124 mg) in THF (dry) (5 mL) was added to a suspension of NaH (60%, 88.0 mg) and 2-chloroethanesulfonyl chloride (0.139 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, then recrystallized from EtOAc-EtOH to give the title compound (29.0 mg) as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08575154B2
Source datasetuspto-grants-2013_11
ORD IDord-8a3c4201cb354e1c82423d524e2352d9
Source noteuspto-grants-2013_11