Question

Please evaluate the IR spectrum. Provide a structure and note any important peaks corresponding to the structure.

It was an experiment using:

isoamyl alcohol + acetic acid

sulfuric acid as the catalyst

and the products are isoamyl acetate and water. Thank you so much!!!

95 卜诒 卜” 90 85 寸 80 75 70 65 E 60 ー 55 50 45 40 35 30 25 20 4000 3500 3000 2500 2000 Wavenumbers (cm-1) 1500 1000 500

Answer 1

Esterification Reaction

он он Acetic acid Isoamyl alcohol isoamyl acetate

Stretching and bending of the functional group of isoamyl acetate

Absorption, cm-1	Stretching/Bending	Functional group
2958	Sp3 C-H Stretching	-CH3, -CH2, -CH
2871	Sp3 C-H Stretching	-CH3, -CH2, -CH
1739	-C=O stretching (carbonyl-ester)	-COOR ester group
1465	Sp3 C-H bending	-CH3, -CH2, -CH
1387	Sp3 C-H bending	-CH3, -CH2, -CH
1227	-C-O Stretching	COOR ester group
1055	-C-O Stretching	COOR ester group