Abstract: | Novel mono- or dibromo-substituted tetrahydro-1,5-benzodiazepinones were obtained by direct bromination of the corresponding 2,3,4,5-tetrahydro-(1H)-1,5-benzodiazepin-2-ones and 5-N-alkyl (or formyl) derivatives with bromine. Substituent effects and the orientation of the entering groups in the bromination reaction are discussed.Institute of Biochemistry, Vilnius LT-2600, Lithuania; c-mail: apalaima@bchi.lt. Translated from Khimiya Geterotsiklicheskikh Socdinenii, No. 6, pp. 799–805, June, 2000. |