- 26.26.15: 5-Fluorouracil is one component of a mixture of three drugs used in...
- 26.26.16: (a) Which isomer, the keto or enol form of cytosine, is the stronge...
- 26.26.17: Birds excrete nitrogen as uric acid. Uric acid is a purine having t...
- 26.26.18: Nebularine is a toxic nucleoside isolated from a species of mushroo...
- 26.26.19: The d-arabinose analog of adenosine is an anitiviral agent (vidarab...
- 26.26.20: Adenine is a weak base. Which one of the three nitrogens designated...
- 26.26.21: When 6-chloropurine is heated with aqueous sodium hydroxide, it is ...
- 26.26.22: Treatment of adenosine with nitrous acid gives a nucleoside known a...
- 26.26.23: The 5-nucleotide of inosine, inosinic acid (C10H13N4O8P) is added t...
- 26.26.24: The phosphorylation of -d-glucopyranose by ATP (Section 26.3) has G...
- 26.26.25: In one of the early experiments designed to elucidate the genetic c...
- 26.26.26: (a) The two most acidic hydrogens of uracil have pKas of 9.5 and 14...
- 26.26.27: The coupling reaction of 2,6-dichloropurine with 1,2,3,4-tetra-O-ac...
- 26.26.28: The descriptive passage in this chapter describes the solid-phase s...
- 26.26.29: What is the product of the following reaction?
- 26.26.30: What species is formed from the DMT-protecting group when it is rem...
- 26.26.31: Cyanoethyl groups are removed during treatment of the product with ...
- 26.26.32: Structure 1 is the one given for tetrazole in Figure 26.15. Structu...
- 26.26.33: Consider the conjugate bases of structures 1, 2, and 3 in the prece...
- 26.26.34: ntisense oligonucleotides are a new class of synthetic drugs, one o...
Solutions for Chapter 26: Nucleosides, Nucleotides, and Nucleic Acids
Full solutions for Organic Chemistry, | 9th Edition
A CH3CO! group; also called an acetyl group
A compound that contains both an amino group and a carboxyl group
The electronic structure of a solid, defining the allowed ranges of energy for electrons in a solid. (Section 12.7)
The peak caused by the most abundant ion in a mass spectrum; the most intense peak. It is assigned an arbitrary intensity of 100
A reaction in which a substance reacts with oxygen, usually with the release of heat and light, to produce a flame. (4.4)
A solid that possesses rigid and long-range order; its atoms, molecules, or ions occupy specific positions. (11.4)
A molecule composed of only two atoms. (Section 2.6)
The spreading of one substance through a space occupied by one or more other substances. (Section 10.8)
The group that is formed when two cysteine residues of a polypeptide or protein are joined together.
A derivative of a carboxylic acid in which H of the carboxyl group is replaced by a carbon.
Fourier transform NMR (FT-NMR)
The modern NMR method that is based on a constant magnetic fi eld, a short pulse of electromagnetic radiation, and a mathematical Fourier transform to produce the spectrum
From the Greek, meaning water-fearing.
The polarization of the electron density of a covalent bond caused by the electronegativity of a nearby atom.
Nuclear magnetic resonance (NMR) spectroscopy
A spectroscopic technique that gives information about the number and types of atoms in a molecule, for example, hydrogens (1 H!NMR) and carbons (13C!NMR)
Pauli exclusion principle
No more than two electrons may be present in an orbital. If two electrons are present, their spins must be paired
A process in which heat converts a mineral in an ore from one chemical form to another and eventually to the free metal. (Section 23.2)
The gain of electrons. Alternatively, either the gain of hydrogen, loss of oxygen, or both
Constitutional isomers in equilibrium with each other that differ in the location of a hydrogen atom and a double bond relative to a heteroatom, most commonly O, N, or S.
The outermost occupied electron shell of an atom.
Z (Section 5.2C)
From the German, zusammen, meaning opposite. Specifi es that groups of higher priority on the carbons of a double bond are on the same side