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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2035738Generated: November 2, 2026

Water → 9-Biphenyl-4-yl-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxide

https://huagongshe.com/reaction/2035738

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantEthanesulfonylchloride, 2-chloro-HCID 15385—
ReactantSodium hydrideHCID 24758—
Reactant3-Biphenyl-4-ylpyridin-2-amineHCID 65454950—
SolventTetrahydrofuranHCID 8028—
SolventHexaneHCID 8058—
Product9-Biphenyl-4-yl-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxideHCID 6674899768.2%

Reaction Steps

A mixture of 3-biphenyl-4-ylpyridin-2-amine (700 mg) in dehydrated THF (30 mL) was added to a mixture of sodium hydride (60%, 568 mg) and 2-chloroethanesulfonyl chloride (1390 mg) in dehydrated THF (30 mL) under ice-cooling. The reaction mixture was stirred at room temperature overnight, and water and hexane were added. The resulting precipitate was collected by filtration, and washed with water and ethyl acetate to give the title compound (652 mg) as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08575154B2
Source datasetuspto-grants-2013_11
ORD IDord-658008420c9a43c78cf019a112988c70
Source noteuspto-grants-2013_11