Preparation and application of 5-phenyl o-anisidine_Kain Industrial Additives

Background and overview[1] 5-Phenyl-o-anisidine, also called 3-amino-4-methoxybiphenyl, can be prepared from p-hydroxybiphenyl through a three-step reaction. Preparation[1] Preparation of compound biphenylhydrazine ester (I) In a 250ml three-necked flask, dissolve 5g (29.4mmol) of p-hydroxybiphenyl in 25ml of methyl tert-butyl ether (MTBE), mix and stir for 5 minutes, and control the temperature at 30°C. Take 4ml (58.8mmol,…