Download or read book Expanding the Scope of Benzimidazole Derivatives Synthesis from a Green Chemistry Perspective written by Fabrizio Politano and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen-containing heterocycles have a wide range of medicinal and industrial applications. Benzimidazole and its derivatives belong to this group and their synthesis is of importance. Environmental concerns, and consequently, new legislation imposed on industrial processes, means that chemists are having to re-think their practices and to develop more sustainable synthetic methods. Herein, the results of a synthetic methodology to synthetize benzimidazole N-oxides by a sustainable approach are presented. The synthesis and isolation processes are fast, easy, and environmentally friendly, allowing for the preparation of large numbers of products in a short time and producing a small amount of non-hazardous waste. The analysis of this methodology employing green metrics allows for corroboration of this. Additionally, in some cases, the benzimidazole N-oxide formation reaction proceeds via an unexpected pathway involving a carbon-carbon bond-cleavage. This process was studied here, and a rational explanation for the observation is presented.