chapter 1. Synthesis of bioactive heterocyclic systems promoted by silica-supported catalysts / Daniela Lanari and Ornelio Rosati -- chapter 2. Eco-benign synthesis of indole derivatives employing diverse heterogeneous catalysts / Renuka Jain, Kanti Sharma, and Deepak Kumar -- chapter 3. Solid heterogeneous catalysts based on sulfuric acid and transition-metal salts : synthesis of bioactive heterocycles / Bahador Karami -- chapter 4. Heterogeneous copper-catalyzed synthesis of bioactive heterocycles / Xin Lv and Guodong Yuan -- chapter 5. Silica sulfuric acid : a simple and powerful heterogeneous catalyst in organic synthesis / Sushma S. Kauthale, Sunil U. Tekale, Ambadas B. Rode, Sandeep V. Shinde, K.L. Ameta, and Rajendra P. Pawar -- chapter 6. Application of silica-based heterogeneous catalysis for the synthesis of bioactive heterocycles / Laishram Ronibala Devi and Okram Mukherjee Singh -- chapter 7. Application of organometallic compounds as heterogeneous catalysts in organic synthesis / Prachi Rathi, Sudesh Kumar, K.L. Ameta, and Dharma Kishore -- chapter 8. Ultrasound : an efficient tool for the synthesis of bioactive heterocycles / Essam M. Hussein -- chapter 9. Nano-zinc oxide : an efficient heterogeneous catalyst for the synthesis of heterocyclic compounds / Sunil U. Tekale, Ambadas B. Rode, K.L. Ameta, and Rajendra P. Pawar -- chapter 10. Application of heterogeneous catalysts for the synthesis of bioactive coumarins / Lokesh A. Shastri and Manohar V. Kulkarni -- chapter 11. Silver : a versatile heterogeneous catalyst for heterocyclic synthesis / Chetna Ameta and K.L. Ameta -- chapter 12. Mesoporous materials from novel silica source as heterogeneous catalyst / Sujitra Wongkasemjit and Rujirat Longloilert.