"Green Chemistry" deals with environmentally benign organic transformations. The book is divided into two parts. The first part deals with introduction, principles of green chemistry and planning a green synthesis. In the second part synthetic organic transformations in aqueous phase, solid phase, photochemical transformations, using phase transfer catalysts, using sonication, microwaves, enzymatic transformations, transformations in ionic liquids, polyethylene glycol and also transformations using polymer support reagents are discusses. Besides, some miscellaneous transformations are also described. The experimental details of a large number of transformations in all the above heads are given. This book will be extremely helpful to students at undergraduate and postgraduate levels and also to research students, chemists and scientists engaged in research in the colleges, universities and industries.