Synthetic equivalents to prepare isovaniline .
The expected H-NMR of isovanilline will be -
~10 for Aldehyde proton
~5 for Phenolic proton
~3.5-4.0 for Methoxy proton
And among the Aromatic proton, proton para to -OH will be up field, and rest 2 meta proton will be down. But the one also ortho to -OMe will be relatively down field.
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