This 13C spectrum exhibits resonances at the following chemical shifts, and with the multiplicity indicated:
Shift (ppm) | |
190.8 | 130.2 |
154.6 | 114.5 |
132.0 | 55.4 |
55.4……….. -0CH3
114.5………TWO AROM -CH ORTHO TO O ATOM
130.2……..AROM C OF -CHO
132……….TWO AROM -CH ORTHO TO -CHO
154.6……….AROM C OF -OGP
190.8……. CH=O GP
FIRST SIGNAL IS 3H OF CH3
SECOND IS DOUBLET OF TWO H OF AROM RING ORTHO TO O ATOM
THIRD IS DOUBLET OF TWO H OF AROM RING ORTHO TO -CHO GP
LAST IS LONE H OF CHO
THANKS AND REGARD’S
DR ANTHONY MELVIN CRASTO Ph.D
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