Download OU B.Pharma 2-1 Year 2019 Aug 13250 Pharmaceutical Oranic Chemistry Ii Question Paper

Code No. 13250/Non CBCS

FACULTY

B. Pharmacy 2/4 II Sem. (Non CBCS) (Backlog) Examination, July 2019

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Subject: Pharmaceutical Organic Chemistry II

Time: 3 Hrs Max. Marks: 70

Note: Answer all questions. All questions carry equal marks.

1. (a) Explain the mechanism of sulphonation and Friedel crafts alkylation. 8
   (b) Explain in detail 4n+2 rule and aromaticity. 6
   

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   OR
2. (a) Add a note on Heats of hydrogenation. 6
   (b) Write the structure and electrophilic reactions of Naphthalene. 8
3. (a) Explain in detail about Optical isomerism. 7
   (b) Explain Sequence rules to determine R and S configuration. 7
   

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   OR
4. (a) Explain in detail about Cis Trans isomerism. 8
   (b) Define and explain Elements of symmetry. 6
5. (a) Discuss the method of preparation and electrophilic substitution reactions of Thiophene. 10
   (b) Write the structure and specific uses of drug compounds containing Pyridine and Indole. 4
   

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   OR
6. (a) Explain the reactions of Pyrrole. 8
   (b) Discuss the Oxidation reactions of Quinoline and Isoquinoline. 6
7. (a) Write any two method of preparations of Benzimidazole and Phenothiazine. 8
   (b) Write the structure and specific uses of drug compounds containing
   

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   i) Phenam ii) Cepham iii) Triazole. 6
   OR
8. (a) Write the method of preparation and reactions of Pyrazole. 8
   (b) Write the structure and specific uses of drug compounds containing
   i) Oxazine ii) Benzofuran iii) Tetrazole 6

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9. (a) Describe the mechanism of the following reactions. 8
   i) Fries migration ii) MPV reduction
   (b) Write two applications of Lithium aluminum hydride and Lead tetra acetate. 6
   OR
10. (a) Write two applications of Selenium oxide and Perchloric acid. 6
    

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    (b) Describe the mechanism of the following reactions. 8
    i) Beckmann rearrangement ii) Birch reduction.

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