Preparation of benzofuranone_Kain Industrial Additive

overview[1] benzofuranone is an important organic synthesis intermediate and can be used to synthesize medicines, pesticides and new antioxidants. the common synthesis methods are as follows: using o-hydroxyphenylacetic acid as raw material and dehydration, or using o-chlorophenylacetic acid as raw material and hydrolysis and cyclization, or using anisole as raw material to prepare o-hydroxyphenylacetic acid.…