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Cyclopentadiene

Nice results and even nicer presentation of them! Excellent!

Taxol

Again, thorough investigation of all the conformations, including two chairs for both 9 and 10. Exceedingly well presented. Well done again.

About the only improvement I can suggest is that you explore the hydrogenation of 9 and 10 to investigate their hyper stability.

NMR

1H shows just one anomalous H, the vinyl one. But the expt assignments are incomplete? I could not get your models for 17 and 18 to load, so could not inspect your geometry to see what was happening. Thus you list only one 1H at 5.21 ppm, and one of your calculated values is exactly that. So why does it deviate? Your carbon also baffles. Your shift deviation chart shows only three peaks deviating by more tha 1ppm, but your table shows far far more? Did you try to compute a mean standard deviation or an RMS deviation?

Epoxides

Crystal structures

Good, but when you write "thus, favouring the alignment of the acceptor group in an axial position" could you try to quantify that alignment (as antiperiplanar?) Good analysis of the Jacobsen catalyst.

NMR

Good, to the point where you finished.

You made a wonderful start, but probably spent far too much time on that aspect. So in the end you did run out of time.