The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: Ethyl indoline-2-carboxylate( cas:50501-07-0 ) is researched.Recommanded Product: 50501-07-0.Sahoo, Manoj K.; Balaraman, Ekambaram published the article 《Room temperature catalytic dehydrogenation of cyclic amines with the liberation of H2 using water as a solvent》 about this compound( cas:50501-07-0 ) in Green Chemistry. Keywords: quinoline preparation; tertahydroquinoline dehydrogenation ruthenium catalyst cobalt visible light; indoline preparation; dihydroindole dehydrogenation ruthenium catalyst cobalt visible light; quinoxaline preparation; tetrahydroquinoxaline dehydrogenation ruthenium catalyst cobalt visible light. Let’s learn more about this compound (cas:50501-07-0).
Catalytic dehydrogenation of cyclic amines, in particular partially saturated N-heterocycles to N-heterocyclic arenes, quinolines, indolines and quinoxalines with the removal of mol. hydrogen as the sole byproduct in water was reported. This dehydrogenation reaction proceeded smoothly under very mild and benign conditions and operates at room temperature This distinctive reactivity was achieved under dual catalytic conditions by merging the visible-light active [Ru(bpy)3]2+ as the photoredox catalyst and a newly synthesized cobalt complex as the proton-reduction catalyst. A detailed mechanistic study (control experiments, electrochem. studies, UV-visible experiments) was presented for the present dual catalysis.
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Reference:
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics