Cyclopentadiene → HCID 19774604, compound

Participants

Reaction Conditions

Reaction Steps

9 ml (110 mmol) of cyclopentadiene were added to a solution of 28.0 g (250 mmol) of potassium t-butylate in 50 ml of methanol at 0° C. 21.2 g (100 mmol) of 2,5-tridecanedione were then added dropwise at 0° C. After the mixture had been stirred at 0° C. for 1 hour, it was stirred at room temperature for a further 3 hours. Working up was carried out analogously to Example 6. Column chromatography gave 16.9 g (70 %) of the indene 5.

Provenance & Evidence