Organometallic Chemistry. 2

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Presentation transcript:

Organometallic Chemistry. 2 Catalysis

Organometallic Chemistry. The Players Introducing Wilkinson’s Catalyst, RhCl(PPh3)3

Organometallic Chemistry. The Players Understanding Wilkinson’s Catalyst, RhCl(PPh3)3 Analyze electronic structure

Organometallic Chemistry. The Players Understanding Wilkinson’s Catalyst, RhCl(PPh3)3 RhCl3(H2O)3 + excess PPh3 Analyze Reaction RhCl3(H2O)3 + 4 PPh3 RhCl3(PPh3)3 + O=PPh3 + 2 HCl + 2 H2O

Organometallic Chemistry. The Players (Actually it’s more complicated…) RhCl3(H2O)3 + excess PPh3 heat Reaction Conditions?

Organometallic Chemistry. The Play So what does Wilkinson’s catalyst do? Make a prediction?

Organometallic Chemistry. The Plot

Organometallic Chemistry. The Deception

? Organometallic Chemistry. Your play 1. Make the catalyst: heat RhCl3(H2O)3 + excess PPh3 heat 2. Investigate this Reaction: ? + RCHO Mild heat Rh product ppts Filter; save filtrate Take IR and NMR of ppt ESI-MS of ppt Propose reaction

Organometallic Chemistry. Next Week 1. Catalytic Olefin Hydrogenation 2. Analyze filtrate by GC-MS: does it confirm your proposed reaction?