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Chp 5—Stereochemistry

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

of stereoisomers =

Back (Answer)

2^n, if n = chiral centers in molecule

#2
Front (Question)

(+) rotation of light

Back (Answer)

dextrorotary

#3
Front (Question)

(-) rotation of light

Back (Answer)

levorotary

#4
Front (Question)

atropisomers

Back (Answer)

conformational isomers that are stable, isolable compounds - bond rotation is restricted by sterics (large molecules) or double/triple bonds

#5
Front (Question)

internal racemic mixture

Back (Answer)

meso

#6
Front (Question)

separation of enantiomers

Back (Answer)

resolution

#7
Front (Question)

chemical resolution

Back (Answer)

racemic mixture reacts with pure enantiomer of a compound - forms diastereomers

#8
Front (Question)

kinetic resolution downside

Back (Answer)

one enantiomer reacts quickly, the other slowly May use enzymes specific to one enantiomer Lose ½ of compound to reactions

#9
Front (Question)

chromatographic resolution

Back (Answer)

use chiral column - enantiomers form bands based on how tightly they are bound to column

#10
Front (Question)

highest tech resolution

Back (Answer)

chiral HPLC

#11
Front (Question)

solvent water

Back (Answer)

PP

#12
Front (Question)

solvent Acetic acid

Back (Answer)

PP

#13
Front (Question)

solvent Acetone

Back (Answer)

PP

#14
Front (Question)

solvent Acetonitrile

Back (Answer)

PA

#15
Front (Question)

solvent DCM

Back (Answer)

PA

#16
Front (Question)

solvent DMSO

Back (Answer)

PA

#17
Front (Question)

solvent DMF

Back (Answer)

PA

#18
Front (Question)

solvent tetrachloromethane

Back (Answer)

PA

#19
Front (Question)

solvent Tetrahydrofuran

Back (Answer)

PA

#20
Front (Question)

walden inversion

Back (Answer)

Nu attacks substrate at 180° from LG - configuration of groups on stereoatom invert 100%

#21
Front (Question)

provides alcohol group for Sn2

Back (Answer)

NaOH

#22
Front (Question)

provides ether for Sn2

Back (Answer)

NaOR

#23
Front (Question)

provides thiol for Sn2

Back (Answer)

NaSH

#24
Front (Question)

provides thioether for Sn2

Back (Answer)

NaSR