| 摘要 |
NEW MATERIAL:A compound shown by formula I. USE:Perfume having grapefruit-like citrous aroma. PREPARATION:2-Ethylidenebicyclo[2.2.1]heptane-5(or 6)carboaldehyde shown by formula II and formaldehyde are subjected to cannizzaro reaction to give a compound shown by formula III, which is heated in an acidic condition (sulfu ric acid, phosphoric acid, etc.) in a solvent such as isopropyl alcohol, etc., under reflux to give a compound shown by formula IV. This compound is oxidized to convert CH2OH into COOH and reacted with benzene in the presence of lead tetracetate to give a compound shown by formula I.
|
