This book presents the select papers from the International Symposium on “Emerging Trends in Synthesis and Catalysis” (ETSC 2023). It covers the latest trends in novel synthesis strategies and highly efficient heterogeneous/homogeneous catalytic chemical species. Various topics covered in this book are green synthesis, reaction designs, catalyst synthesis, advanced materials for organic synthesis, polymer synthesis, stereoselective synthesis, flow chemistry, bio-catalysis, organo-catalysis, catalysis for sustainable development and industrial processes, multiphase catalysis, separation science and process development, organometallic compounds in synthesis and catalysis, computational tools for synthetic processes and processes for environment sustainability. The book is useful for researchers, academicians, and industrialists working in material science and industrial chemistry.