1: methacrylic acid methyl ester With (10H)-phenothiazine; 4-methoxy-phenol Heating / refluxNeat (no solvent); 2: With di(n-butyl)tin oxide T=70 - 101°C; Heating / refluxNeat (no solvent); 3: 2-(dimethylamino)-ethanol; 3-(dimethylamino)-n-propylamine With titanium(IV) isopropylate Product distribution / selectivity; more than 3 stages;

(10H)-phenothiazine; 2,6-di-tert-butyl-4-methyl-phenol; 4-methoxy-phenol; di(n-butyl)tin oxide T=110°C; P=60.006 - 97.5098 Torr; 5.5 h;

sodium methylate; 1,4-diamino-benzene; benzene durch unter azeotropen Abdestillieren des gebildeten Methanols;

methanol; sodium methylate; N-(4-hydroxyphenyl)-aniline

View Scheme

in chloroform; acetonitrile T=40°C;

in acetone

in hexane Ambient temperature;