Organic Chemistry
8 terms
E1 Reaction
Organic Chemistry
s⁻¹
A two-step elimination proceeding through a carbocation, which then loses a proton to form an alkene.
rate = k[substrate]
E2 Reaction
Organic Chemistry
L/(mol·s)
A single-step elimination in which a base removes a proton as the leaving group departs, forming a double bond.
rate = k[substrate][base]
Electrophile
Organic Chemistry
Dimensionless
An electron-deficient species that seeks and accepts a pair of electrons from an electron-rich centre.
E⁺
Electrophilic Addition
Organic Chemistry
Dimensionless
A reaction in which an electrophile adds across a carbon–carbon multiple bond, converting a pi bond into two sigma bonds.
C=C + E–Nu → C(E)–C(Nu)
Electrophilic Substitution
Organic Chemistry
Dimensionless
A reaction in which an electrophile replaces a hydrogen atom on an aromatic ring.
ArH + E⁺ → ArE + H⁺
Enantiomer
Organic Chemistry
degrees
One of a pair of stereoisomers that are non-superimposable mirror images of each other.
(+) and (−), or R and S
Ester
Organic Chemistry
Dimensionless
A compound formed by replacing the acidic hydrogen of a carboxylic acid with an alkyl group.
R–COO–R′
Ether
Organic Chemistry
Dimensionless
A compound in which an oxygen atom is bonded to two carbon atoms.
R–O–R′