1. Introduction, activities and advantages of sonochemical protocol in organic synthesis 2. Sonochemical protocol for oxidation reactions 3. Sonochemical protocol for reduction reactions 4. Sonochemical protocol for protection and deprotection reactions 5. Sonochemical protocol for stereoselective organic synthesis 6. Sonochemical protocol for stereospecific organic synthesis 7. Sonochemical protocol for addition-type reactions (Michel, Aldol, etc.) 8. Sonochemical protocol for condensation reactions 9. Sonochemical protocol for alkylation reactions 10. Sonochemical protocol for phenolic compounds synthesis 11. Sonochemical protocol for Grignard reactions 12. Sonochemical protocol for aqueous vs biphasic organic synthesis 13. Sonochemical protocol for fluoroorganics 14. Sonochemical protocol for heterocyclics 15. Sonochemical protocol for biological-active organic synthesis 16. Sonochemical protocol for catalyst-free organic synthesis 17. Sonochemical protocol for solvent-free organic synthesis 18. Sonocatalysis for organic synthesis 19. Sonochemical protocol for multi-component reactions 20. Sonochemical protocol for C-H activation reactions 21. Sonochemical protocol for C-N formation reactions 22. Sonochemical protocol for coupling reactions 23. Sonochemical protocol for bio-fuel production 24. Sonochemical protocol of polymer synthesis 25. Sonochemical protocol for functionalized carbon synthesis 26. State of the art and perspectives of sonochemical protocol in organic synthesis