- 22.1.1: a. Explain why, when the imidazole ring of histidine is protonated,...
- 22.1.31: What dipeptides would be formed by heating a mixture of valine and ...
- 22.1.32: Suppose you are trying to synthesize the dipeptide Val-Ser. Compare...
- 22.1.33: Show the steps in the synthesis of the tetrapeptide Leu-Phe-Ala-Val.
- 22.1.34: a. Calculate the overall yield of bradykinin when the yield for the...
Solutions for Chapter 22.1: THE NOMENCLATURE OF AMINO ACIDS
Full solutions for Organic Chemistry | 7th Edition
A bond to a chair conformation of cyclohexane that extends from the ring parallel to the imaginary axis through the center of the ring; a bond that lies roughly perpendicular to the equator of the ring.
A device for measuring the heat evolved in the combustion of a substance under constant-volume conditions. (Section 5.5)
The enthalpy change, ?H, required to break a particular bond when the substance is in the gas phase. (Section 8.8)
In NMR spectroscopy, protons (or carbon atoms) that occupy identical electronic environments and produce only one signal.
Having the same energy.
The attraction between the positive end of one dipole and the negative end of another.
A symbol used to show that structures on either side of it are resonance-contributing structures
electrophilic aromatic substitution
A substitution reaction in which an aromatic proton is replaced by an electrophile and the aromatic moiety is preserved.
An effect thatprevents the use of bases stronger than hydroxidewhen the solvent is water.
lithium dialkyl cuprate
A nucleophilic compound with the general structureR2CuLi.
Theresonance-stabilized intermediate of a nucleophilicaromatic substitution reaction.
The study of carbon-containing compounds, typically containing carbon–carbon bonds. (Section 2.9; Chapter 24:Introduction)
Compounds with the general structure R!O!O!R.
A voltaic cell that cannot be recharged. (Section 20.7)
Lipids that contain 20 carbon atoms and are characterized by a five-membered ring with two side chains.
A constant of proportionality between the reaction rate and the concentrations of reactants that appear in the rate law. (Section 14.3)
A bimolecular nucleophilic substitution reaction.
The threedimensional shape of a protein.
A compound containing an !SH (sulfhydryl) group bonded to an sp3 -hybridized carbon.
A neutral molecule with positive and negative charges on adjacent atoms