Hydrazine hydrate (1:1) → HCID 23458556, compound

Participants

Reaction Steps

2.45 g (11.4 millimoles) of cis-2-(p-cyanobenzoyl)-cyclopropanecarboxylic acid, 0.57 g (11.4 millimoles) of hydrazine hydrate and 50 ml of ethanol are refluxed for 6 hours. After filtering off the product at 10° C. and drying it under reduced pressure at 50° C., 1.6 g (67% of theory) of 2-(p-cyanophenyl)-3,4-diaza-bicyclo[4.1.0]hept-2-en-5-one are obtained as ocher crystals which are identical with the compound from Example 39.

Provenance & Evidence