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24 Cards in this Set
- Front
- Back
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draw : hemiacetal
What is the reaction to make a hemiacetal? |
RCHOHOR'
reaction : aldehyde + alcohol |
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draw : hemiketal
What is the reaction that makes a hemiketal? |
RCOHROR'
reaction : ketone + alcohol |
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draw : a mesyl group
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CH3O=S=O
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draw : a tosyl group
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CH3-Ph-O=S=o
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carbonyl group
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--C=O
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acetyl group
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--COCH3
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acyl group
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--COR
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anhydride
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R-COOOC-R
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aryl
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phenyl group, benzene ring as a functional group
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benzyl
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aryl group + CH2 -- R
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enamine
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amine attached to an alkene
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imine
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nitrogen double bonded to a carbon
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oxime
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nitrogen double bonded to a carbon and also attached to a hydroxyl group. R2C=N-OH
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nitro
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N double bonded to an O and single bonded to another O (NO2)
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nitroso
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N double bonded to an O (NO)
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how are atoms around the chiral center given priorities?
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1) atomic weight
2) subs on double and triple bounds are counted two and three times respectively |
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enantiomers
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same molecular formula, same bond-to-bond connectivity, mirror images, NOT the same molecule
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Enantiomers have (the same/different) physical and chemical properties? What are the exceptions?
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the same
exceptions : in reactions with plane polarized light, with other chiral compounds |
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diastereomers
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same molecular formula, same bond-to-bond connectivity, NOT mirror images, and NOT the same compound
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resolution
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the separation of enantiomers
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geometric isomer
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a typ of diastereomer
cis/trans DIFFERENT physical properties |
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meso compounds
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have a plane of symmetry through their centers which divides them into two halves that are mirror images to each other
achiral, so optically inactive |
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epimer
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diastereomers that differ at only one chiral carbon
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anomer
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- a type of epimer
- stereoisomer of a cyclic saccharide |
