Chapter 4-1

Chapter 4-1

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Unformatted text preview: ethylhexane? Me H Me Me H Me H H Me Me H H Me Me H H Me ??-3,4-dimethylhexane ??-3,4-dimethylhexane (3S,4S)-3,4-dimethylhexane (3R,4R)-3,4-dimethylhexane Me H H Me H Me Me H Me H Me H H Me H Me The same compound! (superimposable) enantiomers Meso Compounds Me 3,4-dimethylhexane has 3 stereoisomers! Me H Me Me H Me H H Me Me H H Me Me H H Me meso-3,4-dimethylhexane meso-3,4-dimethylhexane (3S,4S)-3,4-dimethylhexane (3R,4R)-3,4-dimethylhexane Me H H Me H Me Me H Me H Me H H Me H Me A Meso Compound (achiral) Enantiomers (chiral) Meso Compounds The best way to identify a meso compound is to prove that it is superimposable with its mirror image. However, a quick test is to see if it contains a plane of symmetry: pl ane of symmetr y Me H H Me Me H Me H H Me H Me meso-3,4-dimethylhexane (3S,4S)-3,4-dimethylhexane (3R,4R)-3,4-dimethylhexane Compounds containing a plane of symmetry are achiral! No plane of symmetry The Isomers of C3H4Cl2, Revisited Cl CH3 Cl Cl Cl Cl Cl Cl Cl Cl Cl CH2 Cl CH3 Cl Cl Cl Cl Cl Cl Cl Cl Cl The Isomers of C3H4C...
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This note was uploaded on 10/06/2010 for the course ES ES271 taught by Professor Machaut during the Spring '10 term at Colby.

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