Chemistry
Organic Chemistry 6th Edition solutions
Author: William H. Brown, Christopher S. Foote , Brent L. Iverson, Eric Anslyn
Publisher: Brooks Cole
ISBN: 9780840054982
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Chapter Problems
Glossary
Key Chemistry Terms and definitions covered in this textbook
(n 1 1) rule
If a hydrogen has n hydrogens nonequivalent to it but equivalent among themselves on the same or adjacent atom(s), its 1 H!NMR signal is split into (n 1 1) peaks
1,2-Shift
A type of rearrangement in which an atom or group of atoms with its bonding electrons moves from one atom to an adjacent electron-defi cient atom.
a-Amino acid
An amino acid in which the amino group is on the carbon adjacent to the carboxyl group.
a-Carbon
A carbon atom adjacent to a carbonyl group
a-Helix
A type of secondary structure in which a section of polypeptide chain coils into a spiral, most commonly a right-handed spiral.
a-Hydrogen
A hydrogen on a carbon alpha to a carbonyl group.
Absolute confi guration
Which of the two possible isomers an enantiomer is (i.e., whether it is the right- or left-handed isomer).
Absorbance (A)
A quantitative measure of the extent to which a compound absorbs radiation of a particular wavelength. A 5 log (I0/I ) where I0 is the incident radiation and I is the transmitted radiation
Acetal
A molecule containing two !OR or !OAr groups bonded to the same carbon
Aceto group
A CH3CO! group; also called an acetyl group
Achiral
An object that lacks chirality; an object that has no handedness
Activating group
Any substituent on a benzene ring that causes the rate of electrophilic aromatic substitution to be greater than that for benzene.
Activation energy
The difference in Gibbs free energy between reactants and a transition state
Acyl group
An RCO! or ArCO! group.
Acylation
The process of introducing an acyl group, RCO! or ArCO!, onto an organic molecule.
Acylium ion
A resonance-stabilized cation with the structure [RC"O]1 or [ArC"O]1. The positive charge is delocalized over both the carbonyl carbon and the carbonyl oxygen.
Addition reaction
A reaction in which two atoms or groups of atoms react with a double bond, forming a compound with the two new groups bonded to the carbons of the original double bond.
Aglycon
Lacking a sugar
Alcohol
A compound containing an !OH (hydroxyl) group bonded to a carbon atom
Aldehyde
A compound containing a !CHO group