Chapter 4-1

Chapter 4 1

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Unformatted text preview: Chapter 4: Stereochemistry Introduction To Stereochemistry Consider two of the compounds we produced while finding all the isomers of C7H16: CH3 CH3 2-methylhexane 3-methylhexane Me C Me H 2-methylhexane Me Me Me Bu H mirror Me Bu H Me rotate Bu H Me 2-methylhexane is superimposable with its mirror image Introduction To Stereochemistry Consider two of the compounds we produced while finding all the isomers of C7H16: CH3 CH3 2-methylhexane 3-methylhexane H C Me 3-methylhexane Me H mirror Et rotate H Pr Pr Pr H Me Et Et Me 3-methylhexane is NOT superimposable with its mirror image Introduction To Stereochemistry Consider two of the compounds we produced while finding all the isomers of C7H16: CH3 CH3 2-methylhexane 3-methylhexane Compounds that are not superimposable with their mirror image are called chiral (in Greek, chiral means "handed") 3-methylhexane is a chiral molecule. Compounds that are superimposable with their mirror image are called achiral. 2-methylhexane is an achiral molecule. An atom (usually carbon) with 4 different substituents is called a stereogenic center or stereocenter. Enanti...
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