- 20.7.14: What is the major product of the following reaction? N NCH3 Br + 2 ...
- 20.7.15: List imidazole, pyrrole, and benzene in order from most reactive to...
- 20.7.16: Imidazole boils at 257 C, whereas N -methylimidazole boils at 199 C...
- 20.7.17: Why is imidazole a stronger acid (p Ka = 14.4) than pyrrole (p Ka '...
- 20.7.18: What percent of imidazole will be protonated at physiological pH (7...
- 20.7.19: Draw guanine and cytosine in the enol form.
- 20.7.20: Why is protonated pyrimidine (p Ka = 1.0) more acidic than protonat...
Solutions for Chapter 20.7: Some Amine Heterocycles Have Important Roles in Nature 1
Full solutions for Organic Chemistry | 7th Edition
Solutions for Chapter 20.7: Some Amine Heterocycles Have Important Roles in Nature 1Get Full Solutions
The increase in energy associated with a bond angle that has deviated from the preferred angle of 109.5°.
Delocalized electrons move freely through “bands” formed by overlapping molecular orbitals. (21.3)
The production of chlorine gas by the electrolysis of aqueous NaCl solution. (22.6)
A symbol used to show the redistribution of valence electrons in resonance contributing structures or reactions, symbolizing movement of two electrons
The ratio of an object’s mass to its volume. (Section 1.4)
A reaction that occurs between chlorobenzene and either NaOH (at high temperature) or NaNH2.
A nonsuperimposable mirror image.
A functional group in which two acyl groups, RCO! or ArCO!, are bonded to a nitrogen atom
A biopolymer containing three types of monomer units: heterocyclic aromatic amine bases derived from purine and pyrimidine, the monosaccharides d-ribose or 2-deoxy-d-ribose, and phosphoric acid
the number of degrees through which a compound rotates the plane of polarized light
In NMR spectroscopy, a technique in which only the one-bond couplings are observed. CH3 groups appear as quartets, CH2 groups appear as triplets, CH groups appear as doublets, and quaternary carbon atoms appear as singlets.
A compound that rotates plane-polarized light.
Pauli exclusion principle
The rule that states that an atomic orbital or molecular orbital can accommodate a maximum of two electrons with opposite spin.
pi 1P2 bond
A covalent bond in which electron density is concentrated above and below the internuclear axis. (Section 9.6)
A term used to indicate that exactly one alkyl group is attached directly to a particular position. For example, a primary carbocation has one alkyl group (not more) attached directly to the electrophilic carbon atom (C+).
A biopolymer formed from amino acids. (Section 24.7)
The structure of a protein resulting from the clustering of several individual protein chains into a final specific shape. (Section 24.7)
A compound with a weak bond that undergoes homolytic bond cleavage with great ease, producing radicals that can initiate a radical chain process.
reaction quotient (Q)
The value that is obtained when concentrations of reactants and products are inserted into the equilibrium expression. If the concentrations are equilibrium concentrations, Q = K; otherwise, Q ? K. (Section 15.6)
A change in connectivity of the atoms in a product compared with the con nectivity of the same atoms in the starting material.