GREEN CHEMISTRY: A Textbook is written especially in meet the requirements and undergraduate and postgraduate students in chemistry if various universities / Colleges. Green chemistry deals with environmentally benign chemical synthesis. Basic principles of green chemistry and how to plan a green synthesis have been discussed. Organic synthesis using benign green solvents like water, supercritical carbon dioxide ionic Liquids, polyethylene glycol and ferrous solvents. Organic synthesis using phase transter catalysts and ultra sound have also been incorporated. The use of green catalysts including biocatalysts and polymer supported reagents and solid state organic synthesis have been discussed. The book will be at immense use to students and researchers at all levels and also to chemists working in chemical industries.