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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1534828Generated: November 1, 2026

1,8-Diazabicyclo(5.4.0)undec-7-ene → HCID 3073581, compound

https://huagongshe.com/reaction/1534828

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,8-Diazabicyclo(5.4.0)undec-7-eneHCID 81184—
Reactant1-Cyclopropyl-6,7,8-trifluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acidHCID 535414—
ReactantHCID 19908242HCID 19908242—
SolventAcetonitrileHCID 6342—
ProductHCID 3073581HCID 307358162.7%

Reaction Steps

1-Cyclopropyl-6,7,8-trifluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid (0.42 g), 3-methyl-3,7-diazabicyclo[3.3.0]oct-1(5)-ene dihydrobromide (0.47 g) and 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU, 0.63 g) were dissolved in acetonitrile (20 ml) and refluxed for 7 hours. The reaction mixture was kept at room temperature overnight and then the produced precipitate was filtered, washed with acetonitrile and methanol to give the title compound 0.36 g (yield 62%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05091384
Source datasetuspto-grants-1992_02
ORD IDord-dd4c298e5fd24daeac5fe0d66a03be4e
Source noteuspto-grants-1992_02