| β-二亚胺配体支持的铝胺化合物的制备及其催化ε-己内酯开环聚合的高效性能 | |
| Aluminum Amine Compound Protected by β-Diketiminate Ligand: Preparation and Enhanced Performance as Catalyst for Ring-Opening Polymerization of ε-Caprolactone | |
| 摘要: 成功合成了由β-二亚胺配体（L）支持的铝胺化合物（L）AlH（NMe2）2（L=HC（C（Me）NAr）2，Ar=2，6-iPr2C6H3）（1）。该化合物采用分步合成法进行制备，以n-BuLi与HNMe2反应生成的锂盐LiNMe2作为前驱体，进一步与（L）AlH2溶液共混通过消除LiH得到目标产物。通过核磁共振谱、元素分析、红外漫反射光谱和X射线单晶衍射确定了铝胺化合物（L）AlH（NMe2）2的组成与结构。该铝胺化合物中，金属Al中心同时形成Al-H和Al-NMe2基团，在催化ε-己内酯的开环聚合的反应中展现出了优异的催化活性。通过高效凝胶渗透色谱测定了所得聚合物的分子量和分子量分布。 | |
| 关键词: β-二亚胺配体 铝胺化合物 X射线单晶衍射 开环聚合 | |
| 基金项目: 国家自然科学基金（No.21671018，21872005）资助。 | |
| Abstract: An aluminum amine compound (L)AlH(NMe2) (L=HC(C(Me)NAr)2, Ar=2,6-iPr2C6H3) (1) protected by steric β-diketiminate ligand L has been synthesized successfully. A two-step synthesis method was employed to prepare the aluminum amine (L)AlH(NMe2) compound. The aluminum amine compound (L)AlH(NMe2) was identified via NMR spectroscopy, elemental analysis, infrared diffuse reflectance spectroscopy and X-ray single crystal diffraction analysis. The aluminum amine compound containing both Al-NMe2 and Al-H substitutes showed excellent catalytic performance on the ring-opening polymerization of ε-caprolactone. The molecular weight and molecular weight distribution of the resultant polycaprolactone were determined by high performance gel penetration chromatography. | |
| Keywords: β-diketiminate ligand aluminum amine compound X-ray single crystal diffraction ring-opening polymerization | |
| 投稿时间：2020-07-12 修订日期：2020-09-19 | |
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| 李文玲,闫犇,孙晨光,沈秋妙,刘文清,马小莉,杨智.β-二亚胺配体支持的铝胺化合物的制备及其催化ε-己内酯开环聚合的高效性能[J].无机化学学报,2021,37(1):151-156. | |
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