Abstract
1. m-and p-chloro derivatives and m-and p-fluoro derivatives of diphenylmethane were synthesized and it was shown that they undergo the transarylation reaction on being heated in the presence of aluminum chloride. m-Chloro-, m-fluoro-and p-fluorodiphenylmethanes were synthesized for the first time. 2. It was found that the halogen atoms located in para-position relative to the methylene group of diphenylmethane weaken the bond between the methylene group and the substituted atomatic nucleus; the halogen atoms located in meta-position relative to the methylene group do not exert any influence on the strength of this bond.
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