Chem 242 @ Dickinson

Wittigs and More!

Today was the end of Chapter 19. We talked about the Wittig reaction -- remember that in the end, it is just a fancy carbon nucleophile. The difficult parts of the Wittig are the formation of the four-membered ring and the corresponding reorganization to the products, so pay attention to those parts and make sure that you can push the arrows and understand the results.

We also talked about 1,2- v. 1,4-addition to conjugated C=O systems. This is a relatively simple concept as long as you remember to do the keto-enol tautomerism at the end.

The To Do list for next week has been posted. Coverage for Chapter 20: Monday sections 1 - 5, 10 and Wednesday sections 6 - 9.

Have a great weekend!

posted by DCChem @ 10:15 AM