Question

Assign label to each hydrogen of vanillyl acetate of NMR spectrum. Is this correct?

28'6 -9.87 -7.45 -7.18 -3.87 -2.34 Base-catalyzed vanillin esterification product Simulated High Resolution Spectrum 7.45 -7.18 4 TUTM 03 TTTTT 7.7 7.5 7.3 7.1 6.9 Chemical Shift DE A F001 3.06- 3.06- 11.5 10.5 9.5 8.5 7.5 6.5 3.5 2.5 1.5 0.5 -0.5 -1.5 5.5 4.5 Chemical Shift

Answer 1

Everything is correct except that signal for proton at 7.45 corresponds to the E and the signal for proton 7.18 corresponds to the proton B and D.