Talk:Mod:tb12

Cp: Energies and structures fine. Why is the endo isomer kinetically preferred? Why is 3 strained?

NAD: Good

Taxol: Structure 10 OK, but your 9 has a trans-ring junction (rather than cis) and a boat conf. for the 6 ring. What structural features make the alkene "hyperstable"?

CCl2: Good

Mini-project: Interesting structures, and a nice choice of project! The reaction equation looks odd (the starting material doesn't match the mechanism you've drawn). Also, not clear what you mean by "cis" (I think you mean the Ar with respect to the O). FOr the 13C spectra - you should have tried to quantify the difference between the calculated and experimental for the two isomers, to see which fits best. (I assume no data were given in the lit for 3d - pity). What technique would you suggest to definitively tell them apart?