What is stereospecific and stereoselective reactions explain with examples?
[6 marks]Describe various methods for resolution of racemic mixture.
[5 marks]Define conformation. Explain stability of various conformer of cyclohexane.
[5 marks]Define the following with examples ; a) Mesomer b) Diasteriomer
[6 marks]Enantiomer
[ marks]Why biphenyls are chiral even though it is not having any chiral carbon? Justify by giving relevant examples.
[5 marks]Discuss R, Sand D, Lnomenclature of stereo compound.
[5 marks]What is heterocyclic compounds? Give two synthetic methods for furan.
[6 marks]Explain the reaction and its mechanism of Skraup quinoline synthesis.
[5 marks]Give any two reactions of pyrrole.
[5 marks]Justify following statments: 1) Aromaticity of thiophene is more than furan. 2) Pyridine is more basic than pyrrole. 3) Furan, thiophene and pyrrrole undergo electrophilic reaction at 2nd position.
[6 marks]Write any two method for preparation of imidazole.
[5 marks]Write a note on Hantzsch pyridine synthesis.
[5 marks]Write the following chemical structure: 1) Pyrimidine 2) Acridine 3) Indole 4) Quinoline 5) Isoxazole 6) Thiazole
[6 marks]Give any two reactions and uses of thiazole.
[5 marks]Discuss aromaticity and reactivity of Pyrrole. Q. 6 (a) Explain the importance of NaBH as reducing agent.4
[6 marks]Write a note of wolff Kishner reduction.
[5 marks]Explain in detail about, Dakin reaction.
[5 marks]Give synthetic importance of Birch reduction.
[6 marks]Write a note on Fischer Indole synthesis.
[5 marks]Give the medicinal uses of Purine and Pyrimidine.
[5 marks]