On the contrary, your answer is very helpful to the problem that we may have to face, which is to separate the product from the unreacted starting material. We are letting the reaction run a bit further, but I doubt that it will go to 100% completion. Was there some reason that you chose heptane over hexanes?
I was a little surprised that the change from methyl to trifluoromethyl has the effect that it does on Rf values, but chemistry is full of surprises.