6.2.1 & 2 -Amines, Amino acids, Amines & Chirality

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

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Front (Question)

Naming when NH2 is attached to 1st C

Back (Answer)

• amine e. g. hexylamine

Front (Question)

Naming when NH2 is attached to middle C

Back (Answer)

no. where -NH2 is attached amino Longest carbon chain e.g. 3 amino hexane

Front (Question)

Naming when NH2 group is attached to 2/3 groups

Back (Answer)

N- side chain 1 N - side chain 2 - amine e.g. N - ethyl, N methyl amine alphabetical order

Front (Question)

Primary amines

Back (Answer)

N attached to one R group, 2 H’s

Front (Question)

Secondary amines

Back (Answer)

N attached to two R groups, 1 H

Front (Question)

Tertiary amines

Back (Answer)

N attached to three R groups, no H’s

Front (Question)

Quaternary ammonium salts

Back (Answer)

Not amines but ammonium salts with NO lone pair on the N

Front (Question)

Aromatic amines

Back (Answer)

Have the N joined directly to the benzene ring

Front (Question)

Bonding between amines

Back (Answer)

Some H bonding between molecules but weaker than in alcohols No H bonding in 3’ amines Many simple amines are liquids at rt

#10

Front (Question)

What does base strength of amines depend on

Back (Answer)

How well the N lone pair can accept H+

#11

Front (Question)

When is the basicity of an amine higher

Back (Answer)

When the charge density is higher

#12

Front (Question)

Base strength increases from ..

Back (Answer)

1’ to 3’ amines due to alkyl groups pushing electron density towards the N

#13

Front (Question)

Base strength of 4’ amines

Back (Answer)

Ammonium salts aren’t bases

#14

Front (Question)

Why is basicity low in aromatic amines

Back (Answer)

W/ aromatic amines, NH2 is an ED group so lone pair on N is drawn into delocalised ring, reducing electron density on lone pair

#15

Front (Question)

Highest to lowest basicity

Back (Answer)

3’ > 2’ > 1’ > NH3 > Aromatic

#16

Front (Question)

Synthesis of 1’ amines

Back (Answer)

Nucleophilic substitution Excess ethanolic NH3 and haloalkane –> 1’ amine and NH4X

#17

Front (Question)

Synthesis of 4’ ammonium salts

Back (Answer)

Ethanolic NH3 and a large excess of the haloalkane

#18

Front (Question)

Explaining why something is the stronger base

Back (Answer)

X has a greater electron density on N lone pair as it is a 3’ /2’/ 1’amine and therefore X has a greater ability to accept H+

#19

Front (Question)

Synthesis of 2’ amines

Back (Answer)

Excess haloalkane and 1’ amine Neutralise w/ NaOH

#20

Front (Question)

Synthesis of 3’ amines

Back (Answer)

Excess haloalkane and 2’ amine Neutralise w/ NaOH

#21

Front (Question)

Synthesis of aromatic amines

Back (Answer)

Nitrophenol + 6[H] —> phenylamine + 2 H2O Sn - gets reduced Conc. HCl

#22

Front (Question)

Large excess of haloalkane and amine –>

Back (Answer)

Ammonium salt

#23

Front (Question)

General formula of amino acids

Back (Answer)

RCH(NH2)COOH

#24

Front (Question)

What makes something an alpha-amino acid

Back (Answer)

Has both NH2 and COOH attached to same carbon (2nd)