| abstract |
PROCEDURE TO PREPARE AROMATIC ALDEHYDS. IT CONSISTS OF THE FOLLOWING STEPS: 1) CONDENSING MY / OR P-CRESOL WITH AN ACETIC ACID DERIVATIVE TO OBTAIN 2-HYDROXY-4-METHYLACETOPHENONE AND / OR 2-HYDROXY-5-METHYLACETOPHENONE, I / MAKE OR REACT MY / REACT MY / CRESOL WITH THE DERIVATIVE OF ACETIC ACID TO OBTAIN MY / O P-METHYLPHENYL ACETATE AND REDISPOSE IN A SOLVENT SUCH AS TETRACHLOROETHANE CHLOROBENZENE AND TOLUENE USING ALUMINUM CHLORIDE AS A CATALYST 2-OXIDATION 2) A 80-160 C. 4-METHYLACETOPHENONE AND / OR 2-HYDROXY-5-METALIFECETOPHENONE OBTAINED TO OBTAIN 4-METHYLCATECOL, WHICH IS CONDENSED, WITH WHICH A METHYBENZENE DERIVATIVE IS OBTAINED, WHICH IS HALOGENATED. |