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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1068563Generated: October 31, 2026

Potassium Carbonate → 2,5,6,7-Tetrahydro-1-thia-2,6-diaza-cyclopenta[cd]phenalene 1,1-dioxide

https://huagongshe.com/reaction/1068563

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant7-nitro-2,3-dihydro-1H-Benz[de]isoquinoline-6-sulfonic acid amideHCID 20666115—
SolventDimethylformamideHCID 6228—
Product2,5,6,7-Tetrahydro-1-thia-2,6-diaza-cyclopenta[cd]phenalene 1,1-dioxideHCID 20666112—

Reaction Conditions

Temperature100 °C

Reaction Steps

Potassium carbonate (15 mmol) is added to a solution of 7-nitro-2,3-dihydro-1H-Benz[de]isoquinoline-6-sulfonic acid amide (3 mmol) in anhydrous DMF (30 mL). The resulting solution is stirred at 100° C. for 12 hours then partitioned between ethyl acetate and water. The organic layer is dried over magnesium sulfate and concentrated to afford the title compound. The crude product can be purified by recrystallization or chromatography.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06251890B1
Source datasetuspto-grants-2001_06
ORD IDord-b828aa2a11a24131808d2991bdee17e2
Source noteuspto-grants-2001_06