摘要:
The molecular and crystal structures of diphenylboron chelates of acetylketene N-benzoylaminal and 2-(N-benzoyl)diaminomethylene-4-dimethylaminomethylenecyclohexane-1,3-dione and the structure of the difluoroboron complex of diacetylketene N-benzoylaminal were established. It was found that the aminovinylcarbonyl fragment of the ligand is involved in the formation of a boron-containing ring. A delocalized It-electron system over the NCCCO fragment of the chelate ring is characteristic of the molecules studied both in crystals and solutions.