Hi guys,
I'm wondering if anyone can give me a hint or a little push with this question. I'm honestly scratching my head trying to figure out the chemistry. I have an extremely vague idea.
From step one I can note the use of triflic anhydride (strong electrophile) and 2,6-di-tert-butylpyridine (a hindered base).
I am guessing there is an
1 - introduction of the triflyl group, followed by
2 - a reduction with diisobutylaluminium hydride
3 - protection with t-BuCOCl
4 - Oxidation using CrO3
5 - I can only pick out the deprotection here with potassium carb. (or is that even correct??) - completely lost here.
Any and all help is appreciated greatly.