Hydrazine → HCID 70573020, compound

Participants

Reaction Steps

7.0 g (26.3 millimoles) of cis-2-(p-biphenylcarbonyl)-cyclopropanecarboxylic acid, 1.45 g (29.0 millimoles) of hydrazine and 100 ml of ethanol are refluxed for 8 hours. After filtering off the product at 0° C. and drying it under reduced pressure at 50° C., 6.6 g (96% of theory) of 2-(p-biphenylyl)-3,4-diazabicyclo[4.1.0]hept-2-en-5-one are obtained as colorless crystals, of melting point 220°-221° C. after recrystallization from ethanol.

Provenance & Evidence