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Mom will teach you NMR

July 27, 2014

New Drug Approvals

Dedicated to all moms in the world
C=O group is dad
O atom is mom
Carbonyl is dad and oxygen mom hence c labelled methyl has higher chemical shift  and gets a little more attention
SEE BELOW
NMR IS EASY
A chemical has Formula: C5H10O2
C5H10O2
Rule 2, omit O, gives C5H10
5 – 10/2 + 1 = 1 degree of unsaturation.
Look for 1 pi bond or aliphatic ring.
IR
IR spectrum
The band at 1740 indicates a carbonyl, probably a saturated aliphatic ester. The bands at 3000-2850 indicate C-H alkane stretches. The bands in the region 1320-1000 could be due to C-O stretch, consistent with an ester.
NMR spectrum
Structure answerThis is the structure. See if you can assign the peaks on your…

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