Presentation is loading. Please wait.

Presentation is loading. Please wait.

Indium in Organic Synthesis Huang-Jianzhou 2012-04-14.

Similar presentations


Presentation on theme: "Indium in Organic Synthesis Huang-Jianzhou 2012-04-14."— Presentation transcript:

1 Indium in Organic Synthesis Huang-Jianzhou 2012-04-14

2 1 、 Introduction 2 、 Preparation of Allylindium 3 、 As Lewis Acid 4 、 Cross coupling 5 、 Reduction 6 、 Conclusion

3 化合价: 0, +1,+2,+3 1863 5s2 5p1 J. Uziel, Synthesis, 2007, 1739. Scott E. Denmark, Chem. Rev. 2003, 103, 2763 Basi V. Subba Reddy, Eur. J. Org. Chem. 2010, 591 Sujit Roy, Chem. Rev. 2010, 110, 2472 Anthony J. Downs, Chem. Rev. 2007, 107, 2 Advantages indium in organic synthsis :  stable in air and water  Notoxicity for man  Low first ionization potential, can be an effective single electron transfer agent  organoindium reagents are easy prepared 1 、 Introduction

4 4

5 Regioselectivity 5

6 6

7 Diastereoselectivity

8 8

9 9 2 、 Preparation of Allylindium

10

11 11

12

13 13 allenes

14 14

15 The reactivity of the allyl halide : I ≈ Br >> Cl, F inactive allylindium intermediate

16 16 Addition to C=O Bonds

17

18 Asymmetry

19 Addition to C=N Bonds

20 Asymmetry

21

22

23 Addition to C-C Multiple Bonds

24 24 Other ways

25 3 、 As Lewis Acid

26

27 Coniaene reaction

28

29

30 Aldol, Minnich, D-A Reaction

31 Carbonyl-ene Reactions

32 5 、 Cross-Coupling

33

34 4 、 Reduction

35 Reductive Aldol Reaction

36

37 6 、 Conclusion  Indium and its salts provide various methodologies for formation C-C bond, with high reactivity and the unique selectivity;  Work is still ongoing, especially in enantioselective reactions.

38


Download ppt "Indium in Organic Synthesis Huang-Jianzhou 2012-04-14."

Similar presentations


Ads by Google