The synthesis of ethyl butanoate can be carried out in three steps:
I II III
C4H9Br → C4H9OH → C3H7COOH → C3H7COOC2H5
What is the correct classification of the steps?
|
|
I |
II |
III |
|
A |
substitution |
oxidation |
condensation |
|
B |
addition |
substitution |
condensation |
|
C |
oxidation |
substitution |
condensation |
|
D |
substitution |
oxidation |
substitution |
The synthesis of 2-propyl propanoate can be carried out in two steps:
I
CH3COCH3 → CH3CH(OH)CH3
II
CH3CH(OH)CH3 → C2H5COOCH(CH3)2
What are the reagents needed in I and II?
|
|
I |
II |
|
A |
potassium dichromate(VI) |
sulfuric acid, propanoic acid |
|
B |
sodium borohydride |
sulfuric acid, propanoic acid |
|
C |
sodium borohydride |
sulfuric acid, ethanoic acid |
|
D |
potassium dichromate(VI) |
sulfuric acid, ethanoic acid |
The synthesis of phenylamine can be carried out in two steps:
I II
C6H6 → C6H5NO2 → C6H5NH2
What are the reaction types in I and II?
|
|
I |
II |
|
A |
oxidation |
substitution |
|
B |
addition |
substitution |
|
C |
substitution |
reduction |
|
D |
oxidation |
reduction |
Which of the following reactions produces only pentan-2-ol?
Water and pent-1-ene
1-bromopentane and ethanolic NaOH
Water and pent-2-ene
2-bromopentane and ethanolic NaOH
Which compound could be X in this two step reaction pathway?
C3H8 → X → C3H7OH
C2H5CN
C3H7Cl
C3H6Cl2
C2H5COOH
