Journal fur Praktische Chemie - Chemiker-Zeitung p. 496 - 503 (1995)
Update date:2022-08-11
Topics:
Suprun, Wladimir
Blau, Karla
Reinker, Kathrin
The liquid phase oxidation of α-tert, -butyl, α-bromo-, α-chloro-, and α-methyl styrene with pure oxygen was investigated in a closed apparatus in chlorobenzene solution and in presence of cumene and of cumene hydroperoxide in the temperature range 35-125 deg C.The product yields were determined gaschromatographically.The difference of the activation energies of the epoxide formation and the parallel reactions were calculated.They amount to 27-38 kJ/mol.The epoxide selectivity increases with increasing temperature and decreases with increasing concentration of cumene.Relative chain propagation constants related to the tertriary CH-bond of cumene were determined from cooxidation experiments.
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