METHOD OF OBTAINING PARA TERTIARY BUTYL PHENOL AND ACETONE Russian patent published in 2019 - IPC C07C27/00 C07C37/08 C07C39/06 C07C45/53 C07C49/08 C07C407/00 C07C409/16 

FIELD: technological processes.

SUBSTANCE: present invention relates to a process for producing para tertiary butyl phenol and acetone by oxidizing para tertiary butyl phenol with an oxygen-containing gas at elevated temperature to hydroperoxide and acid decomposition of the latter. Oxidation is carried out in the presence of a phthalimide catalyst of following formula (1) for 15–60 minutes, and the subsequent acid decomposition of para tertiary butyl phenol hydroperoxide is carried out in an acetone medium for 15 minutes in the presence of 0.001–0.1 % wt. from loading para tertiary butyl phenol hydroperoxide with concentrated sulfuric acid.

(1)

R₁, R₂, R₃, R₄=H (a); R₂, R₃, R₄=H, R₁=CH₃ (b); R₁, R₃, R₄=H, R₂=CH₃ (c); R₂, R₃, R₄=H, R₁=C₆H₅ (d); R₁, R₃, R₄=H, R₂=C₆H₅ (e); R₂, R₃, R₄=H, R₁=Cl (f); R₁, R₃, R₄=H, R₂=Cl (g); R₂, R₃, R₄=H, R₁=Br (h); R₁, R₃, R₄=H, R₂=Br (i); R₂, R₃, R₁, R₂, R₃, R₄=Cl (k); R₁, R₂, R₃, R₄=Br (I); R₁, R₃, R₄=H, R₂=NO₂ (m).

EFFECT: proposed method allows to obtain para tertiary butyl phenol and acetone in 94–97 and 90–95 %, respectively.

3 cl, 6 ex