Octet / Functional Groups
Ester
Ester (R-COO-R') - oxygen. Carboxylic acid derivative. Pleasant odors, undergo hydrolysis and transesterification.
Oxygen
Functional Group details
Name
Ester
Category
Oxygen
Smiles
CC(=O)OC
General Formula
R-COO-R'
Description
Carboxylic acid derivative. Pleasant odors, undergo hydrolysis and transesterification.
Properties
- Polarity
polar
- H Bond Donor
No
- H Bond Acceptor
Yes
- Boiling Point Trend
Lower than corresponding acids (no H-bonding)
Spectroscopy
- Ir Peaks
1735-1750 cm⁻¹ (C=O stretch)
1000-1300 cm⁻¹ (C-O stretch)
- H Nmr Shifts
3.7-4.1 ppm (OCH₃)
2.0-2.5 ppm (α-H)
- C Nmr Shifts
160-175 ppm (C=O)
50-70 ppm (O-C)
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