Preparation of imidazo[1,2- a ]- N -heterocyclic derivatives with gem -difluorinated side chains.

Autor: Hariss L; Laboratory for Medicinal Chemistry and Natural Products, Lebanese University, Faculty of Sciences (1) and PRASE-EDST, Hadath, Beirut, Lebanon., Hadir KB; American University of Beirut, Department of Chemistry, Beirut 11-0236, Lebanon., El-Masri M; Laboratory for Medicinal Chemistry and Natural Products, Lebanese University, Faculty of Sciences (1) and PRASE-EDST, Hadath, Beirut, Lebanon., Roisnel T; Université de Rennes 1, Institut des Sciences Chimiques de Rennes, CNRS UMR 6226, Avenue du Général Leclerc, 35042 Rennes Cedex, France., Grée R; Université de Rennes 1, Institut des Sciences Chimiques de Rennes, CNRS UMR 6226, Avenue du Général Leclerc, 35042 Rennes Cedex, France., Hachem A; Laboratory for Medicinal Chemistry and Natural Products, Lebanese University, Faculty of Sciences (1) and PRASE-EDST, Hadath, Beirut, Lebanon.
Jazyk: angličtina
Zdroj: Beilstein journal of organic chemistry [Beilstein J Org Chem] 2017 Oct 10; Vol. 13, pp. 2115-2121. Date of Electronic Publication: 2017 Oct 10 (Print Publication: 2017).
DOI: 10.3762/bjoc.13.208
Abstrakt: Using an aerobic oxidative coupling, different new imidazo[1,2- a ]- N -heterocycles with gem -difluroroalkyl side chains have been prepared in fair yields by the reaction of gem -difluoroenones with aminopyridines, -pyrimidines and -pyridazines. Condensed heterocycles of this type play an important role as key core structures of various bioactive compounds. Further, starting with a chloroimidazopyridazine derivative, Pd-catalyzed coupling reactions as well as nucleophilic substitutions have been performed successfully in order to increase the molecular diversity.
Databáze: MEDLINE