Over the last few years research has become more and more important due to it's usefullness to society. Thish book contain synthesis of heterocyclic compounds specially pyrazole aldehyde and various amine of pyridine and thiazole derivatives. Thish book mainly focous on synthesis of schiff base derivatives, charactorization and biological activity of synthesized compounds. Thish book is usefull for research students whoever working in the field of synthetic organic chemistry.

Over a period of last years research has become more and more important because of its usefulness to society. First chapter of this book contain general introduction of organic chemistry and second chapter of this book contain methods for synthesis of hetero cyclic schiff base derivatives. This book is useful to research students of all university who ever is working in the field of synthesis of organic chemistry.

Over a period of last decades research has become more important due to its usefulness to our society especially in the field of medicinal chemistry. Nowadays due to booming development in the paper and digital publication, it is important to publish authentic research work on appropriate medium. So I would like to present my efforts in research by publishing it in my book. This book contain synthesis of schiff base of pyrazole aldehyde and pyrimidine derivatives. This book is useful to research students of organic chemistry.

Now a days due to pollution corrosion of different metals occurs faster. Here we have tried to study corrosion of brass in different condition. First chapter include general introduction. Second chapter contain material and methods. In third chapter present state of art is given and in final fourth chapter involves study of corrosion of brass in nitric acid in presence of different amino acid. This book is useful to research students whoever is working in the field of corrosion chemistry.

Over a period of last few years polymers have created its own important. Now a days polymer has become part of human life. This book is one of the effort to synthesize some important polymers. I have synthesized aliphatic as well as aromatic polyesters. They all are characterized by TGA, DSC and some spectroscopic data. This book is useful to research students who ever is working in the field of polymer chemistry.

This book is consist of four chapter. Chapter one is for general introduction. Chapter two contain material and method of measurement of corrosion rate. Third chapter contain literature work. Final and fourth chapter contain study of corrosion of 60/40 brass in nitric acid and effect of various dyes by several methods like weight loss method at room temperature and at different temperature, polarization method.

This book is consist of mainly two chapter. The first chapter is for general introduction of drugs, which generally narrates about heterocyclic compounds. The second chapter is for synthesis and characterization of chalcones as well as antimicrobial activity of synthesized chalcones. This book is useful to the research students who ever working in the field of synthetic organic chemistry(heterocyclic compounds).