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Cyanomethylation Jian-Zhou Huang 2013-07-06.  Intrduction  Basic phosphine and NHC  Catalyted by metal Ruthenium Copper Palladium Nickel  Decarboxylative.

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Presentation on theme: "Cyanomethylation Jian-Zhou Huang 2013-07-06.  Intrduction  Basic phosphine and NHC  Catalyted by metal Ruthenium Copper Palladium Nickel  Decarboxylative."— Presentation transcript:

1 Cyanomethylation Jian-Zhou Huang 2013-07-06

2  Intrduction  Basic phosphine and NHC  Catalyted by metal Ruthenium Copper Palladium Nickel  Decarboxylative Reaction  Cross-coupling  Conclusion Contents

3 Intrduction: pK a

4 Basic phosphine and NHC

5 Ruthenium

6

7 Copper

8

9

10 Lewis acid/hard Brønsted base/hard Shibasaki. J. Am. Chem. Soc. 2009,131, 3195

11 Lewis acid/hard Brønsted base/hard Lewis base Shibasaki, M. J. Am. Chem. Soc. 2010,132, 5522

12

13 mechanism

14 31 P NMR spectra

15

16 K. J. Szabo, Org. Lett. 2008, 10, 2881 Palladium-pincer ligand

17

18 Norio Shibata, Adv. Synth. Catal. 2011, 353, 3385

19 aza-MBH

20 Nickel Chem. Commun., 2005, 4450

21 Base-Free Conditions

22 Decarboxylative MannichReaction

23

24

25

26 Cross coupling

27 Conclusion (1) 反应类型比较少,大部分仍需要加入强碱; (2 )不对称的反应较少 (3) 反应体系复杂,添加剂多 (4) 需要活化基团活化,原子经济性差。

28 Thank You!


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