| abstract |
According to Scheme 1, 1) a first step of acylating a halogenated benzene compound, 2) a second step of etherifying an acylated compound with a halogenated phenol compound, 3) a third step of oxidizing an etherified compound and 4) an oxidizing compound It describes a method for preparing the halohydroxydiphenyl compound of formula 1 by a fourth step of hydrolyzing.n n n Formula 1n n n n n n n n Scheme 1n n n n n n n n In Chemical Formula 1 and Scheme 1,n n n R 1 and R 2 are independently of each other F, Cl or Br,n n n R 3 and R 4 are independently of each other hydrogen or C 1 to C 4 alkyl,n n n m is 1 to 3,n n n n is 1 or 2.n n n The compound of formula 1 is used for protecting organic materials and articles from microorganisms. |