HCID 13280603, compound → HCID 13280604, compound

Participants

Reaction Steps

A solution of 20.0 g (136 mmol) of (E)-6-[2-(dimethylamino)ethenyl]-fulvene in 100 ml of piperidine is boiled under reflux for 2 hours. The solvent is removed under reduced pressure and the residue is recrystallized from diethyl ether. This gives 12.5 g (63%) of 4-(dimethylamino)-5,6-dihydropentalene in the form of a yellow powder.

Provenance & Evidence