This book highlighted the methods used for the syntheses of pyrazolopyridine dyes. The activity of pyrazolopyridine dyes and their synthetic importance were investigated. It also reported a good introduction for the literature survey of dyes chemistry including basic concepts of color, classical organic dyes, disperse dyes, heterocyclic diazo components and dyeing of polyester fabrics. In this context, we reported herein the behavior of pyrazolopyridine towards some active reagents as a facile and convenient route to some heterocyclic derivatives containing its moiety. The methods of...

Sulfur, nitrogen and oxygen based reagents have become an important part of the store of synthetic chemists. The chemistry of sulfur, nitrogen and oxygen containing compounds and their reactivity, together with an understanding of their mechanisms, is an important part of the modern organic chemistry. This book is concerned with the chemistry of organic compounds possessing at least one C-S, N-C, S-O and S-N bonds. The overall approach is a compromise between the preparation, isolation and properties of the some topics of pyrazolones, pyrazolines, thiazolidones, triazoles, imidazoles,...