prettypriyaz
Mind Map by , created over 5 years ago

A-level Chemistry (F324 Module 1 ) Mind Map on Amines, created by prettypriyaz on 02/03/2014.

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prettypriyaz
Created by prettypriyaz over 5 years ago
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Amines
1 Derivatives of ammonia
1.1 NH3
2 Classification
2.1 Primary Amine
2.1.1 1 H atom replaced.. (RNH2)
2.2 Secondary Amine
2.2.1 2 H atoms are replaced.. (R2NH)
2.3 Tertiary amine
2.3.1 3 H atoms are replaced.. (R3N)
3 Unpleasant smell---Fishy
4 Examples of Amine
4.1 Adrenaline is the "fight or flight" amine----deal with stress
4.2 Phenylpherine is an amine commonly used as a decongestant.
5 Weak bases
5.1 Nitrogen has a lone pairs of electrons and can accept a proton, H+
5.1.1 Dative covalent bond forms when it accepts a proton
5.2 Reaction with acid to make salt
5.2.1 Ethylamine reacts with HCl to form ethylammonium chloride
5.2.1.1 No by product
5.2.1.2 Alkylammonium salts
6 Naming
6.1 Alkylamines
6.2 Secondary or Tertiary Amines
6.2.1 CH3—CH2—CH2—NH—CH3 N-Methyl-1-propylamine
7 Preparation
7.1 Primary Aliphatic Amine
7.1.1 Reagents: Halogenalkane with excess ammonia
7.1.1.1 Nucleophilic Substitutions
7.1.1.1.1 NH3 is the nucleophile
7.1.2 Conditions: Warming the halogenalkane and using ethanol as a solvent.
7.2 Aromatic Amine
7.2.1 Nitrobenzene and other nitroarenes can be reduced to Phenylamine (NH2) and H20
7.2.1.1 Conditions are (Sn and excess HCl) under reflux
7.2.1.1.1 [H] reducing mixture
7.2.1.2 Synthesis of dyes from phenylamine
7.2.1.2.1 Diazotisation
7.2.1.2.1.1 Below 10 degrees
7.2.1.2.1.2 Nitrous acid HNO2 is generated by reacting NaNO2 and HCl
7.2.1.2.2 Coupling reaction
7.2.1.2.2.1 NaOH(aq)-- alkaline conditions
7.2.1.2.2.2 Azo dye functional group -N=N-

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