A student reacted 2-propanol and trifluoracetic anhydride shown below. In the bo
ID: 490717 • Letter: A
Question
A student reacted 2-propanol and trifluoracetic anhydride shown below. In the box, draw the reaction product, the trifluoroacetate ester of 2-propanol. How many carbon signals (unique carbons) would be observed in the GNMR of the ester? _lpt. How many proton signals (unique protons) would be observed in the HNMR of the ester? _ lpt Label each unique proton in your product structure above. On the grid illustrate what you would expect in the HNMR of the trifluoroacetate ester of 2-propanol to look like. For each signal include: a label from d, the approximate chemical shift, integration and show correct splitting.Explanation / Answer
The ester formed is CF3COOCH(CH3)2
Thus it has only two unique protons. one is -O- CH- and the other are the two methyls(same environment thus equivalent)
Thus in the NMR we get two unique signals only .
The -CH appears about 5.0ppm as a hepte(1H) and the methyls as doublet at around 3.5 ppm(6H)
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.