Method of preparation of homocamphor and homoepicamphor
Abstract
Abstract A METHOD OF PREPARATION OF HOMOCAMPHOR AND OF HOMOEPICAMPHOR, CHARACTERIZED IN THAT IT COMPRISES DISSOLVING 1,8,8-TRIMETHYLBICYCLO(3,2,1)-OCTANE-2,4-DIONE IN A MIXTURE OF HYDRAZINE HYDRATE WITH AN ORGANIC SOLVENT WHICH HAS A HIGH BOILING POINT AND WHICH IS CAPABLE OF SUPPLYING PROTONS, HEATING AND REFLUXING OF SAID MIXTURE, ADDITION OF A STRONG BASE AFTER COOLING OF THE MIXTURE, DISTILLATION OF THE HYDRAZINE HYDRATE AND WATER, SAID DISTILLATION PROCESS BEING STOPPED FROM THE MOMENT OF FORMATION OF THE FIRST CRYSTALS WHICH APPEAR IN THE CONDENSER, COOLING OF THE RESIDUE TO ROOM TEMPERATURE, ADDITION OF WATER AND PHOSPHORIC ACID TO THE RESIDUE UNTIL A PH VALUE LOWER THAN 2 IS OBTAINED AND DISTILLATION OF THE WATER RESULTING IN ENTRAINMENT OF THE CRYSTALS OF THE DESIRED PRODUCTS.
Inventors
- 👤 Genevieve Chalier
- 👤 Andre Rassat
Bibliographic Details
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