3.3.14 - Organic Synthesis

Question 1

Synthesis pathways

Answer 1

Needed to convert starting materials into a target compound

Question 2

Reasons for yield being low

Answer 2

Product is left in the reaction mixture
The reaction in incomplete of irreversible

Question 3

Oxidising agent

Answer 3

Acidified potassium dichromate

Question 4

Reducing agents

Answer 4

NaBH4
H2 and Nickel catalyst
Tin / HCl

Question 5

Dehydrating agents

Answer 5

Al2O3
Acid

Question 6

NaBH4

Answer 6

Reduces a carbonyl group C=O to an alcohol group C-OH

Question 7

H2 and Nickel catalyst

Answer 7

Reduces a C=C double bond

Question 8

Tin / HCl

Answer 8

Reduces NO2 to NH2

Question 9

Al2O3

Answer 9

Pass vapour over it

Question 10

Acid

Answer 10

Catalysed elimination by H3PO4

Question 11

Benzene to phenylketone

Answer 11

Acylation

Question 12

Acylation

Answer 12

Benzene to phenylketone

Question 13

Benzene to nitrobenzene

Answer 13

Nitration

Question 14

Nitration

Answer 14

Benzene to nitrobenzene

Question 15

Nitrobenzene to an aromatic amine

Answer 15

Reduction

Question 16

Reduction

Answer 16

Nitrobenzene to an aromatic amine

Question 17

Aromatic amine to an aromatic amide

Answer 17

Use of an acyl halide

Question 18

Use of an acyl halide

Answer 18

Aromatic amine to an aromatic amide