CAJ | 학술논문

通过桥连双β-二酮类化合物与取代苯胺反应,合成了5个新的桥连双(β-单酮亚胺)化合物(1~5)和2个新的桥连双(β-二酮亚胺)化合物(6,7),它们与三甲基铝反应,得到了相应的3个双(β-酮亚胺基)二铝配合物(8~10)和2个双(β-二酮亚胺基)二铝配合物(11,12)。采用核磁共振、红外光谱和质谱等对这些化合物进行了表征,通过X射线单晶衍射分析证实了铝配合物的结构,并考察了这些铝配合物在ε-己内酯开环聚合反应中的催化活性。
통과교련쌍β-이동류화합물여취대분알반응,합성료5개신적교련쌍(β-단동아알)화합물(1~5)화2개신적교련쌍(β-이동아알)화합물(6,7),타문여삼갑기려반응,득도료상응적3개쌍(β-동아알기)이려배합물(8~10)화2개쌍(β-이동아알기)이려배합물(11,12)。채용핵자공진、홍외광보화질보등대저사화합물진행료표정,통과X사선단정연사분석증실료려배합물적결구,병고찰료저사려배합물재ε-기내지개배취합반응중적최화활성。
Owing to its special physical and chemical properties as well as good coordination activity with transition metals, β-diketone-derived β-ketimines and β-diketimines have been extensively studied in recent years. In this work, five new bridged bis(β-ketimine)(1-5) and bis(β-diketimine) ligands(6,7) were syn-thesized by the condensation reaction of 3,3’-(1,4-phenylene) bis(2,4-pentanedione) with various anilines. Treatment of these ligands with AlMe3 afforded five new aluminum complexes(8-12). All these compounds were characterized via elemental analysis, 1 H NMR, 13 C NMR, ESI-MS and IR spectroscopy. Structures of two aluminium complexes were determined by the X-ray single-crystal diffraction analysis. The bridged β-keti-mine acted as a chelating N, O-bidentate ligand to the aluminium atom. Each aluminum atom showed a dis-torted tetrahedral coordination geometry. These aluminum complexes exhibited effective catalytic activity in the ring-opening polymerization of ε-caprolactone.