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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1748077Generated: November 1, 2026

Triethylamine → 9-{4-[4-(Trifluoromethyl)phenoxy]phenyl}-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxide

https://huagongshe.com/reaction/1748077

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant4-(Trifluoromethyl)phenylboronic acidHCID 2734389—
Reactant4-(2,2-Dioxido-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazin-9-yl)phenolHCID 66747817—
CatalystHCID 178476681HCID 178476681—
SolventDimethylformamideHCID 6228—
Product9-{4-[4-(Trifluoromethyl)phenoxy]phenyl}-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxideHCID 6674852712.3%

Reaction Steps

A mixture of 4-(trifluoromethyl)phenylboronic acid (495 mg), 4-(2,2-dioxido-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazin-9-yl)phenol (240 mg), diacetoxycopper (316 mg), triethylamine (0.60 mL), and powdered 4A MS (1.5 g) in DMF (10 mL) was stirred at room temperature overnight. The mixture was added with NH silica gel, concentrated in vacuo, and purified by column chromatography (NH silica gel, eluted with MeOH in EtOAc) to give the title compound (45 mg) as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09150591B2
Source datasetuspto-grants-2015_10
ORD IDord-a509104ce58e450bb48f8ceef6362776
Source noteuspto-grants-2015_10