[spyder45]

I have this organic problem I am having trouble answering. I attached the question as an image, please refer to it. The question asks me to draw mechanisms explaining the formation of the two isomers by reacting the reactant with (TfO)2, which is triflic anhydride. I tried figuring it out myself, but I could not solve it. Any help would be appreciated, thank you.

[cundi]

Try to rotate the molecules. probably you 'll find the answer yourself