Green Synthesis of Monocyclic and Fused Nitrogen Heterocycles with Promising Bioactivity Effects

Pursuing novel synthetic methodologies according to the green chemistry principles has beenthe active area of research for the past four decades. Heterocyclic building blocks, as an importantclass of organic compounds, have attracted much attention because of their medicinal,agricultural, and biological applications [1]. Five- and six-membered nitrogen heterocycleshave presented broad array biological and medicinal properties. Thus, finding novel syntheticmethodologies toward the synthesis of these classes of building blocks would definitely bebeneficial for preparation of new products with promising biological and medicinal uses. Inthe present paper, we have reviewed the attempts toward the green synthesis of some classesof monocyclic and fused nitrogen heterocycles accomplished by us (Fig. 1).