Cobalt(III) Schiff base complex: Synthesis, X-ray structure and aerobic epoxidation of olefins
2013; Elsevier BV; Volume: 56; Linguagem: Inglês
10.1016/j.poly.2013.03.050
ISSN1873-3719
AutoresDebraj Saha, Tanmoy Maity, Raj Kumar Bera, Subratanath Koner,
Tópico(s)Oxidative Organic Chemistry Reactions
ResumoA new Co(III) Schiff-base complex, [Co(HL)2]NO3·H2O (1) (H2L = 1-(N-3-methoxy-salicylideneimino)-ethane-2-ol), has been synthesized and characterized by several physicochemical methods. X-ray crystal structure analysis revealed that complex 1 features a distorted octahedral coordination geometry and the metal center is surrounded by two tridented N,O,O-donor Schiff base ligands (HL−). [Co(HL)2]NO3·H2O (1) is capable of activating dioxygen in air to catalyze the epoxidation of various alkenes using isobutraldehyde as a co-reductant under homogeneous conditions. It was observed that the yield of the epoxides and their selectivity is highest in acetonitrile medium.
Referência(s)