The Scientific Literature Honors Cup /13/05

General 216 Announcements Office Hours: 3:30-5: Thursdays GSI “office hours” Post experiment 1 details ~5pm on Friday at: M216/216Hhome.htm NMR

The Honors Cup Proposal –Check (Fri 1/28 10 am to Dr. Gottfried) –Final Version (Monday 2/7 10am to Dr. Gottfried Peer Review –Week of 2/7; review all proposals in section using rubric provided by 10 am Friday 2/11 Synthesis –Last six weeks of lab

The Proposal Target: what is it and why is it (or the series of transformations) important Overall Scheme For each step –A ChemDraw picture of the transformation –An experimental –Any green or safety issues Budget References

Goals for your Proposal Interesting process or molecule that you would like to carry out 3 synthetic transformations 216H doable experimentals –Time –Scale –Equipment and technique 0.5 g final product Doable characterization

Interesting Molecule or Process Forward –What synthetic transformations are you interested in? –What processes are most interesting? –Do you want to use a green reaction? Retro Synthesis –What molecule are you interested in making? –Make a functional group like that of a larger molecule.

What is NOT a Synthetic Transformation? A synthetic transformation changes one functional group to another. Remember you need to isolate and characterize the product of each step. Reaction work-ups and extractions are not synthetic transformations.

Extraction g of ground nutmeg is to be heated under reflux for 30 minutes with mL of diethyl ether (6). The mixture should be cooled to room temperature and the solid decanted. Wash with mL of diethyl ether, and distill the liquid to recover the solvent (7) g of solid yellow residue will appear. Recrystallization from ethanol is possible to recover 2.833g of trimyristin (a white solid, 5% yield based on starting nutmeg) with MP o C and Rf.5 on TLC (Thin Layer Chromatography) with Hexane solvent system (1)..

Overall Reaction Scheme : A 3-Step Synthesis

Where do I get ideas? Medicine cabinet Internet Flip through journals Fragrances, flavors Labels and ingredients

Forbidden Fruits Aspirin Dulcin Mysteric acid

Once you have an idea…. –Electronic Journals and Newspapers –Networked Electronic Resources SciFinder (SLC PCs and Macs) –Author –Transformation –Molecule (synthesis, etc.) Beilstein(SLC PCs) –Characterization –Synthesis