4-hydroxy-3,5 ditertiary phenones

Abstract

Abstract STABILIZERS, FOR PLASTICS, OILS AND FATS, OF THE FORMULA 2,6-DI((H3C-)3C-),4-(R-CO-)PHENOL WHEREIN IS ALKYL OF 4 TO 25 CARBON ATOMS; ALKYL OF UP TO 25 CARBON ATOMS IN WHICH ONE OR MORE OF THE METHYLENE GROUPS ARE REPLACED BY -O-, -S-, -NR1AND/OR CO; MORPHOLINO-ALKYLENE WHEREIN THE ALKYLENE BRIDGE CONTAINS 1 OR 2 CARBON ATOMS; CYCLOHEXYL OR CYCLOPENTYL UNSUBSTITUTED OR SUBSTITUTED WITH -R1, -OR1, -SR1 OR -NR1R2; OR PHENYL WHICH IS MONO- OR POLYSUBSITUTED WITH ALKYL OF 1 TO 18 CARBON ATOMS, -OR1, -SR1 OR -MNR1R2; OR ARALKYL WHOSE ALKYL PORTION CONTAINS FROM 1 TO 10 CARBON ATOMS AND IN WHICH ONE OR MORE CH2-GROUPS CON BE REPLACED BY -O-, -S-, -NR1- AND/OR CO, AND WHOSE ARYL PORTION CAN BE MONO- OR POLYSUBSTITUTED BY -R1, -OR1, -SR1 AND/OR -NR1R2; CAN BE PRODUCED BY REACTING 2,6-DI-TERT.-BUTYLPHENOL WITH AN ACID DERIVATIVE OF THE FORMAL R-CO-X WHEREIN X IS -O-CO-R'' OR HALOGEN, R'' BEING R OR R1, IN THE PRESENCE OF A LEWIS ACID, E.G., ALCI3 OR TICL3.

Inventors

• 👤 M Engelhardt
• 👤 B Dennler
• 👤 W Baumer
• 👤 W Fruhstorfer
• 👤 R Hesse

Bibliographic Details