Novel synthesis of benzotrihalides: the pyrolysis of phenyl trihalogenoacetates
Abstract
Pyrolysis of 4-chlorophenyl trichloroacetate (I) at 500 °C yields 4-chlorobenzotrichloride (II) and some 1,4-dichlorobenzene (III) as by-product; the corresponding trifluoroacetate is converted into 4-chlorobenzotrifluoride.