1. CHEMOSELECTIVITY

3. Regioselective Reactions: Where the reaction occurs

4. No selectivity –
both OH and NH2 reacted

5. Chemoselectivity

6. Chemoselectivity : REDUCTION OF CARBONYL COMPOUNDS

8. Protection of aldehyde/ketone

9. Example 1

10. Example 2

11. Protection of OH group - TBDMS

12. Protection of OH group - THP

13. Protection of OH group - Bn
Example 1

14. Protection of OH group - Bn
Example 2

15. Protection of OH group - Bn
Example 3

16. Summary

17. Protection of COOH / NH2 groups

19. Protection of COOH - Esterification

20. Protection of NH2 group

23. Protection of NH2 group

24. Protection of COOH - Esterification

27. Summary

40. Predict the product .