(C07C47/228)

ethod of simultaneous production of acetophenone and α-phenylpropionic aldehide // 2333903
FIELD: chemistry.SUBSTANCE: invention relates to method of simultaneous production of acetophenone and α-phenylpropionic aldehide, which are aromatic substances. Method lies in oxidation of α-methylstyrole with air in presence of highly-silicious zeolite catalyst of pentasyl type with molar ratio SiO2/Al2O3=120 in H-form, in amount of 2-6 weight %, at the rate of air supply of 20-40 l/h, reaction temperature of 80-100°C during 3-5 hours. The method allows for obtaining acetophenone with selectivity of 41.6-58.9% and α-phenylpropionic aldehide with selectivity of 37.9-54.7%, with α-methylstyrole conversion of 54.1-73.0 weight %.EFFECT: ensuring possibility of simultaneous production of acetophenone and phenylpropionic aldehide.1 tbl, 5 ex
 
2550846.
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