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Organic Chemistry

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Organic Chemistry

E1 Reaction

A two-step elimination proceeding through a carbocation, which then loses a proton to form an alkene.

rate = k[substrate] s⁻¹ Organic Chemistry

E2 Reaction

A single-step elimination in which a base removes a proton as the leaving group departs, forming a double bond.

rate = k[substrate][base] L/(mol·s) Organic Chemistry

Electrophile

An electron-deficient species that seeks and accepts a pair of electrons from an electron-rich centre.

E⁺ Dimensionless Organic Chemistry

Electrophilic Addition

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) Dimensionless Organic Chemistry

Electrophilic Substitution

A reaction in which an electrophile replaces a hydrogen atom on an aromatic ring.

ArH + E⁺ → ArE + H⁺ Dimensionless Organic Chemistry

Enantiomer

One of a pair of stereoisomers that are non-superimposable mirror images of each other.

(+) and (−), or R and S degrees Organic Chemistry

Ester

A compound formed by replacing the acidic hydrogen of a carboxylic acid with an alkyl group.

R–COO–R′ Dimensionless Organic Chemistry

Ether

A compound in which an oxygen atom is bonded to two carbon atoms.

R–O–R′ Dimensionless