Hi everyone,
I'm working on a problem set for my advanced organic class, and I'm stuck on this problem :
http://imgur.com/EUCQs"Give the products and the stereochemical outcomes for each of the following transformations. Justify your answer using clearly drawn figures. Label and identify any relevant stereochemical or conformational issues."
I know that it's an epoxidation reaction, but I'm having trouble figuring out how the position of the methyl group would affect the stereochemical outcome. The only thing I can think of is some sort of anomeric effect with the oxygen, but I can't visualize the orbitals involved.
Any help or guidance would be greatly appreciated!