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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1405885Generated: November 2, 2026

Water → 8-Methoxy-9-(4-phenoxyphenyl)-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxide

https://huagongshe.com/reaction/1405885

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantEthanesulfonylchloride, 2-chloro-HCID 15385—
ReactantSodium hydrideHCID 24758—
ReactantHCID 66748748HCID 66748748—
SolventTetrahydrofuranHCID 8028—
SolventHexaneHCID 8058—
Product8-Methoxy-9-(4-phenoxyphenyl)-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxideHCID 66748411—

Reaction Steps

A solution of 4-methoxy-3-(4-phenoxyphenyl)pyridin-2-amine (124 mg) in THF (dry) (5 mL) was added to a suspension of NaH (60%, 85.0 mg) and 2-chloroethanesulfonyl chloride (0.133 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 crystallized from THF—IPE to give the title compound (60.0 mg) as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08916551B2
Source datasetuspto-grants-2014_12
ORD IDord-b06b67a33bd041aab165213aed48df82
Source noteuspto-grants-2014_12