Rajiv Gandhi University of Health Sciences
First Year M.Pharm Degree Examination - May 2011
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[Time: 3 Hours] [Max. Marks: 100]
ADVANCED PHARMACEUTICAL CHEMISTRY (ORG.)
PAPER II
(Revised Scheme 2)
Q.P. CODE: 9232
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Your answers should be specific to the questions asked.
Draw neat labeled diagrams wherever necessary. Answer all questions
LONG ESSAY (Answer any TWO) 2 X 20 = 40 Marks
- Discuss the mechanisms involved in nucleophilic aromatic substitution reactions with suitable examples
- Write about the phase transfer catalysis in anhydrides, epoxide, ester and reduction reactions.
- Classify rearrangement reactions with suitable examples. Explain any three rearrangement reaction with their mechanisms.
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SHORT ESSAY (Answer any FIVE) 5 X 10 = 50 Marks
- Write an account of formation and reactions of free radicals.
- Give an account of Homogenous and Heterogenous catalysis
- Write about combinatorial libraries in solution.
- Discuss the pericyclic reactions giving emphasis on sigmatropic rearrangement.
- Explain the formation, structure and reactions of Carbenes.
- Discuss the mechanism involved in Cannizzaro reaction and Aldol condensation by giving suitable examples.
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SHORT NOTES 2 X 5 = 10 Marks
- Conversion of pyrrole to pyridine.
- Macro-Beads in new solid phase synthesis.
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