Question

Look at the given spectroscopy data. How many degrees of unsaturation are present in this molecule? The IR at 1735 cm-1 is indicative of a type bond and when combined with the 13C NMR signal at 172 ppm and general H NMR is indicative of a(n) functional group. The 1HNMR peak at 6.3 ppm and broad signal at 3325 cm-1 in the IR is indicative of a(n) that is bonded to a

Answer 1

Step-by-step explanation:

Degree of unsaturation can be calculated by the formula

DU = (2C+2+N-X-H)/ 2 where

C is the number of carbons

N is the number of nitrogens

X is the number of halogens (F, Cl, Br, I)

H is the number of hydrogens. Oxygen and sulfur are not included in the formula because saturation is unaffected by these elements

So for C18H29NO2

DU = (36+2+1-29)/ 2 = 05.

The IR at 1735 cm-1 is indicative of a carbonyl type bond and when combined with the 13C NMR signal at 12 ppm and general H NMR is indicative of a (n) ester funtional group.

The HNMR peak at 6.3 ppm and broad signal at 3325 cm-1 in the IR is indicative of a (n) amine that is bonded to sp2 hybridized central atom.