Reaktion #1913911

Reaktionsgleichung

4-pyridin-4-yl-1,3-dihydroindol-2-one

4-oxo-2,4,6,7-tetrahydropyrano[3,4-c]pyrrole-1-carbaldehyde

→

title compound

Ausbeute 17.5%

1-(2-Oxo-4-pyridin-4-yl-1,2-dihydroindol-3-ylidenemethyl)-6,7-dihydro-2H-pyrano[3,4-c]pyrrol-4-one

Ausbeute 17.5%

Lösungsmittel

ethanol

Reaktionsbedingungen

Aufarbeitung

1. 1
   SonstigeThe precipitate which formed
2. 2
   Filtrationwas collected by vacuum filtration
3. 3
   Waschenwashed with ethanol
4. 4
   Sonstigedried

Vorschrift

A mixture of 4-pyridin-4-yl-1,3-dihydroindol-2-one (50 mg, 0.24 mmol), 4-oxo-2,4,6,7-tetrahydropyrano[3,4-c]pyrrole-1-carbaldehyde (39.2 mg, 0.24 mmol) and piperidine (1 drop) in ethanol (2 mL) was stirred at room temperature for 48 hours. The precipitate which formed was collected by vacuum filtration, washed with ethanol and dried to give 15 mg (17%) of the title compound.

Quelle