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Solutions for Chapter 6.5: stereochemical correlation
Full solutions for Organic Chemistry | 6th Edition
activated complex (transition state)
The particular arrangement of atoms found at the top of the potential-energy barrier as a reaction proceeds from reactants to products. (Section 14.5)
The positions that are adjacent to the vinylic positions of a carboncarbon double bond.
A carbocation in which an allylic carbon bears the positive charge.
A compound that contains both an amino group and a carboxyl group
In SN2 reactions, the side opposite the leaving group, which is where the nucleophile attacks.
An intermediate containing a positively charged carbon atom.
A term describing a molecule or an ion that cannot be superimposed on its mirror image. (Sections 23.4 and 24.5)
Atoms or groups on an atom that are bonded to an atom that is bonded to two nonidentical groups, one of which contains a chiral center. When one of the atoms or groups is replaced by another group, a new chiral center is created and a set of diastereomers results. The hydrogens of the CH2 group of 2-butanol, for example, are diastereotopic. Diastereotopic groups have different chemical shifts under all conditions
The attraction between the positive end of one dipole and the negative end of another.
In NMR spectroscopy, a signal that is comprised of two peaks.
A method for analyzing the sequence of amino acids in apeptide by removing one amino acid residue at a time and identifying each residue as it is removed.
A negatively charged subatomic particle found outside the atomic nucleus; it is a part of all atoms. An electron has a mass 1>1836 times that of a proton. (Section 2.3)
Atoms or groups on an atom that give a chiral center when one of the groups is replaced by another group. A pair of enantiomers results. The hydrogens of the CH2 group of ethanol, for example, are enantiotopic. Replacing one of them by deuterium gives (R)-1-deuteroethanol; replacing the other gives (S)-1-deuteroethanol. Enantiotopic groups have identical chemical shifts in achiral environments but different chemical shifts in chiral environments.
Fourier-transform NMR (FT-NMR)
In nuclear magnetic resonance (NMR) spectroscopy, a technique in which the sample is irradiated with a short pulse that covers the entire range of relevant rf frequencies.
The attractive forces between molecules.
Light for which all photons have the same polarization, generally formed by passing light through a polarizing filter.
Secondary (2°) amine
An amine in which nitrogen is bonded to two carbons and one hydrogen
A reaction with a negative DG, which means that products are favored at equilibrium.
A compound that contains two SR groups, both of which are connected to the same carbon atom.
Groups that weakly deactivate an aromatic ring toward electrophilic aromatic substitution, thereby decreasing the rate of the reaction.