Eight new compounds of type 2-aryl-4-(2'-hydroxyphenyl)-2,3-dihydro-IH-l,5-benzodiazepines have been synthesized from alpha,beta-unsaturated ketones of 2-acetyl-l-hydroxybenzene by reaction of corresponding alpha,beta-unsaturated ketones with delta-phenylenediamine. The structure of synthesized compounds has been confIrmed and biological activities of these compounds have been investigated.