催化劑的使用在工業界上極為普遍。經由這幾十年來的研究，得知利用後過渡金屬錯合物來當催化劑的優點是可以接受較高極性的functional olefin，並發現配位基的選擇對olefin polymerization有相當的影響。目前實驗室已發展出一系列含氮磷的配位基。用BuLi把中性P-N雙芽基H[2b], H[2c]及P-N-P三芽基H[4]的氫取代,而成鋰鹽, Li[2b](THF)2, Li[2c](THF)2及Li[4](THF)2。X-ray單晶繞射已鑑定出Li[2b](THF)2之結構.以Li[2b](THF)2為起始物,加入benzyl chloride及Ni(COD)2,合成出含鎳錯合物的[2b]Ni(CH2Ph)。

The design and application of late transition metal complexes as olefin polymerization catalysts have made tremendous progress in recent years. The advantage of using late transition metal complexes is that they can tolerate a variety of functional groups. We have developed a series of P-N and P-N-P ligands. By using excess n-BuLi to deprotonate H[2b], H[2c] and H[4], we obtained Li[2b](THF)2, Li[2c](THF)2 and Li[4](THF)2 successfully. Li[2b](THF)2 was confirmed by X-ray single crystal diffraction. Using Li[2b](THF)2 as starting material, reacted with 1 eqiv. benzyl chloride and 1 eqiv. Ni(COD)2 in ether solution result in the clean formation of [2b]Ni(CH2Ph).

Table of Contents
Abstract Ⅰ
List of Figures Ⅳ
List of Schemes Ⅸ
List of Tables Ⅸ

Ⅰ. Introduction 1
1. Synthesis of Ligands 2
2. Synthesis of Metal Complexes 5

Ⅱ. Experimental Section 10
1. Chemicals 10
2. Instruments 11
3. Purification 13
4. Synthesis 14

Ⅲ. Results and Discussion 33
1. Synthesis of biarylamines by using Pd-catalyzed cross-coupling reactions 33
2. Synthesis of a series of P-N ligands 35
3. Synthesis of the P-N-P ligand 36
4. Synthesis of the N-O ligand 37
5. Synthesis of the lithium complexes of P-N ligands and P-N-P ligands 37
6. Synthesis of the nickel complex 42

Ⅳ. Conclusions 44
Ⅴ. References 45
Ⅵ. Appendix 119

List of Figures
Figure 1.α-Diimine ligamds 6
Figure 2. SHOP catalyst 8
Figure 3. N-O chelating ligand 8
Figure 4. ORTEP drawing of Li[2b](THF)2 40

Figure 1A. The 1H NMR (200 MHz) spectrum of 1a in CDCl3 solution at RT 48
Figure 2A. The LR-MS (EI) spectrum of 1a 49
Figure 3A. The 1H NMR (200 MHz) spectrum of H[2a] in CDCl3 solution at RT 50

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