Why do the two methylene protons of the dimethylaminomethyl group of the compound shown give separate copuled signals in the 1H NMR spectrum?
A. Because they are anisotropic.
B. Because they are diasterotopics
C. B/c they are equivalent (NO)
D. B/c every proton in a compound gives a separate signal by high-field NMR (NO)
Answer is : B

A. Because they are anisotropic.
B. Because they are diasterotopics
C. B/c they are equivalent (NO)
D. B/c every proton in a compound gives a separate signal by high-field NMR (NO)
Answer is : B