Amines Flashcards
Solubility
N-H polar
Hydrogen bonding can occur in water
Lower Mr amines dissolve
Higher Mr dissolves more readily in organic solvents
Melting and boiling point
Gets more spherical as chain length increases
More closely packed
More London forces
Mpt increases
Basicity
N has lone pair of electrons
Can accept H+
Amines with Haloalkanes
Amines are strong nucleophiles
Lone pair on N attracted to δ+ Carbon attached to halogen atom
Amines with Acyl Halides
Acts a nucleophiles
Attack polar carbon
Reduction of nitrobenzene
Nitrobenzene placed with tin in a flask with air cooled reflux condenser
Conc HCl gradually added whilst shaking
Violent and flask must be cooled in water
Reactions with Nitrous acid
Forms diazonium ion
Connects benzene ring
AZO DYES