3 C R

Rules of the Day 4-06-07

FYI

You can see streaming video of all previous lectures this semester at http://cns.utexas.edu/lectures/classes.asp

Use login: 53760

Password: ch31on (lower case)

You will need these downloads: http://cns.utexas.edu/lectures/downloads.asp

Note the new intel based macs need a new plug-in which is now available. For more information see: http://cns.utexas.edu/lectures/

1. Learn how to recognize the KRE's of the different enolate reactions, keeping in mind that several are hard to spot. It takes practice!! That is the only way to solve synthesis problems. Remember to work backwards and count carbons.

2. For enolate reactions, you need to keep track of relative base strength and amount added (i.e. number of equivalents). Key considerations are 1) the relative amount of enolate formed and 2) based on mechanism, what is the minimum amount of base needed to get complete reaction.

Homework: Continue working on homework Set 8. Click here to download a copy. Read: Finish reading Chapter 20 Problems: 20.11, 20.12, 20.14