Nouvelles procédures « vertes » dans la synthèse des dérivés de la 3,4-dihydropyrimidin-2(1H)-one, de la 1,4-dihydropyridine et du tétrahydrobenzo[b]pyrane

Abstract

In this manuscript, we explained the purpose of our study, and the results obtained. We are interested in developing new protocols that fall within the field of green chemistry (sustainable chemistry) , offering two new Brϕnsted acids of natural origin catalysts ( ascorbic acid and acetylsalicylic acid); the reactions on which we did our study are multi-component reactions : reaction Biginelli , Hantzsch and synthesis of benzopyran which are divided into three chapters. The three reactions are carried out in a dry environment , which was a plus for our research, we could obtain very good results , that am for returns or for necessary for the progress of the reactions , we have also enriched the library of molecules, the production of new molecules with very good yields in record time.