Term describing a 1,4 relationship between substituents on a benzene ring
An old name for alkanes and cycloalkanes
In electrophilic aromatic substitution, a number that compares the rate of attack at a particular ring carbon with the rate of attack at a single position of benzene.
No two electrons can have the same set of four quantum numbers. An equivalent expression is that only two electrons can occupy the same orbital, and then only when they have opposite spins.
Abbreviation for pyridinium dichromate (C5H5NH+ ClCrO3-) When used in a anhydrous medium, PCC oxidizes primary alcohols to aldehydes and secondary alcohols to ketones.
Abbreviation for pyridinium dichromate (C5H5NH)22+Cr2O72- Used in same manner and for same purposes as PCC link
A carbohydrate with five carbon atoms
An enzyme that catalyzes the hydrolysis of amide bonds in a peptide or protein.
Structurally, a molecule composed of two or more Ī±-amino acids joined by peptide bonds
An amide bond between the carboxyl group of one Ī±-amino acid and the amino group of another FIG
A reaction that proceeds through a cyclic transition state
A horizontal row of the periodic table
A compound of the type ROOR
Reversal of regioselectivity observed in the addition of hydrogen bromide to alkenes brought about by the presence of peroxides in the reaction mixture
Method for increasing the rate of chemical reaction by transporting an ionic reactant from an aqueous phase where it is solvated and less reactive to an organic phase where it is solvated and is more reactive. Typically, the reactant is an anion that is carried to the organic phase as it quaternary ammonium salt
Family of compounds characterized by a hydroxyl substituent on an aromatic ring as in ArOH. Phenol is also the name of the parent compound, C6H5OH
The group FIG It is often abbreviated C6H5-
A compound of the type shown, which is an intermediate in the biosynthesis of triacylglycerols. FIG
One of a number of compounds of the type FIG
Compound of the type shown, especially when R and Rā are D-ribose or 2-deoxy-D-ribose. FIG
A diacylglycerol bearing a cholinephosphate āhead groupā Also known as phosphatidylcholine.
A chemical reaction that occurs when light is absorbed by a substance
Term for an individual ābundleā of energy, or particle, of electromagnetic radiation
A bond in which the electron distribution is concentrated above and below the internuclear axis, rather than along it as in a Ļ bond. In organic chemistry Ļ bonds are most often associated with a side-by-side overlap of p orbitalās on adjacent atoms that are already connected by a Ļ bond.
Electrons in a Ļ bond or a Ļ orbital
Acronym for the name of a compound designated as it āpreferred IUPAC nameā
A measure of acid strength defied as ālog Ka .The stronger the acid, the smaller the value of pKa
Constant of proportionality (h) in the equation E = hv, which relates the energy (E) to the frequency (v) of electromagnetic radiation
A plane that bisects an object, such as a molecule, into two mirror-image halves; also called a mirror plane. When a line is drawn from any element in the object perpendicular to such a plane and extend an equal distance in the opposite direction, a duplicate of the element is encountered.
Type of protein secondary structure characterized by hydrogen bonds between NH and C=O groups of adjacent parallel peptide chains. The individual chains are in an extended zigzag conformation.