DISTANCE EDUCATION
M.Sc. (Chemistry) DEGREE EXAMINATION, MAY 2016.
ORGANIC CHEMISTRY II
(2008 onwards)
Time Three hours Maximum 100 marks
Answer any FIVE questions.
Each question carries 20 marks.
20 100)
1. Write down the schematic analysis of total
synthesis of trans-9-methyl-1-decalone.
Write note on the following reaction
Oppenaur oxidation
Wolff Kishner reduction.
Discuss the mechanism of Baeyer Villiger
rearrangement.
2. Discuss any four functional group interconversion
with suitable example.
Discuss elaborately on umploung synthesis with
suitable example.
What are stereospecific reaction? Explain with
suitable example.
Sub. Code
21
DE-3845
2
SER
3. What are called optical isomerism? Explain the
optical activity of the compound containing one and
more than one asymmetric carbon.
Assign Z configuration for the following
compounds.


4. What are the different types symmetry element?
Explain each one with suitable example.
Give any one experimental method to identify the
intramolecular rearrangement.
What is the role of free radical in chain reaction?
Explain the conformaiton and reactivity of ...
3 and 4 dimethyl cyclohexane.
5. Explain the various conformation and reactivity of
2 dichloroethane.
How would you generate free radical?
State and explain Cis-elimination with suitable
example.
DE-3845
3
SER
Write note on
sensitization
quantum efficiency.
6. Discuss the following reaction with suitable
example.
electrocyclic reaction
cycloaddition
sigmatropic rearrangement.
Describe the photophysical process with the help of
Jablonski diagram.
7. Establish the structure of androsterone.
Elucidate the structure of Vitamin D.
8. Explain relay approach with suitable example.
Discuss the biosynthetic route of cholesterol.
Write note on the following reaction
Barton reaction
Pschorr reaction.