1: C22H44O2; hydroquinone With pyridine T=125°C; 144 h; Inert atmosphere; 2: acetic anhydride With pyridine T=0 - 20°C; Inert atmosphere;

1: 2,3,5-trimethyl hydroquinone; C22H44O2 With pyridine T=180°C; 2 h; Inert atmosphere; 2: acetic anhydride With pyridine T=0 - 20°C; Inert atmosphere;

1: 2,3,5-trimethyl hydroquinone; C22H44O2 With pyridine T=165 - 175°C; 6 h; Inert atmosphere; 2: acetic anhydride With pyridine T=0 - 20°C; Inert atmosphere;