The 4-amino-3-chlorophenol is a crucial intermediate for preparing a tyrosine kinase inhibitor, tivozanib, and a late liver cancer drug, lenvatinib. As a crucial pharmaceutical chemical intermediate, 4-amino-3-chlorophenol is widely applied to the design and synthesis of medicaments for resisting tumors, cardiovascular diseases, neurological diseases, and the like.
Starting from o-chloronitrobenzene with introducing hydroxyl groups in the presence of strong acids and molybdenum salts as catalysts could synthesize 4-amino-3-chlorophenol. Besides, using m-chlorophenol as a starting material and introducing hydroxyl on a benzene ring through diazotization and coupling also could synthesize 4-Amino-3-chlorophenol.
