Identify the functional groups in each compound.
CHM 25700: Fall 2016 Chapter 6: Stereochemistry Reading assignment: All of Chapter 6 and review Ch. 3.4 (Cahn- Ingold-Prelog sequence rules) Homework: For Credit: Online on Sapling Learning. Homework: All in-chapter problems and end of chapter problems: 7 Ed: 26-31, 33-41, 43, 45-47, 51, 53-54, 58-59, 63 th th 5 and 6 Ed: 26-27, 29-42, 44-46, 50, 52-53, 58-59, 64 Stereochemistry is the study of stereoisomers and stereoisomerism Stereoisomers are molecules with the same atomic connectivity, but a different spatial arrangement Chirality = handedness Consequence of chirality: The Thalidomide tragedy: Need for regulation Olfactory receptors: R-(–)-carvone smells like spearmint. Its mirror image, S-(+)-carvone, smells like caraway. 1 A molecule is chiral if it lacks an internal mirror plane symmetry element. They are not superimposable on its mirror image R-(-)-2-butanol S-(+)-2-butanol The two non-superimposable molecules constitute a pair of enantiomers. S-(+)-lactic acid R-(-)-lactic acid Compounds that are not chiral are achiral 2 ethanol Identical molecules Propanoic acid Identical molecules Asymmetric center. A carbon atom bound to four different groups is an asymmetric carbon atom. Asymmetric center (stereocenter) is the cause of chirality.