caa a22 4500 463252462 CHVBK 20180405153344.0 cr unu---uuuuu 170326e20070201xx s 000 0 eng 10.1007/s10562-007-9018-8 doi (NATIONALLICENCE)springer-10.1007/s10562-007-9018-8 Novel homogeneous Salen Mn(III) catalysts synthesized from dialdehyde or diketone with o -aminophenol for catalyzing epoxidation of alkenes [Elektronische Daten] [Donglu Xiong, Zaihui Fu, Sheng Zhong, Xiangfen Jiang, Dulin Yin] A series of novel non-salicylaldehyde based Salen ligands have been synthesized from the condensation of dialdehyde or diketone with o-aminophenol and the corresponding manganese(III) complexes prepared by further coordination of them with $${\hbox{Mn(OAc)}_{2}\cdot 2\hbox{H}_{2}\hbox{O}}$$ . FT-IR, UV-Vis spectra, chemical analysis and the structure optimized by Hartree-Fork/3-21G+ all indicated that the qualities of these novel Mn complexes were relative to their molecular structures. More specifically, glyoxal based Mn complex 2c, which was similar to the traditional Mn(III)-salicylethylenediamine, had a short carbon chain and non geometrical constraint of the aliphatic bridge in the two o-aminophenol, and its quality was the best when compared to glutaraldehyde, 2,4-pentanedione and 1,3-cyclohexanedione based Salen Mn(III) complexes (3c, 4c and 5c). And it was also the excellent catalyst for the epoxidations of several non-functionalized alkenes with molecular oxygen/sacrificial-isobutyaldehyde, PhI(OAc)2 or H2O2 as oxidant. Springer Science+Business Media, LLC, 2007 novel Salen(III) Mn complexes nationallicence dialdehyde nationallicence diketone nationallicence o -aminophenol nationallicence epoxidation of alkenes nationallicence molecular oxygen/isobutyaldehyde nationallicence Xiong Donglu College of Chemistry and Chemical Engineering, Hunan Normal University, 410081, Changsha, P.R. China aut Fu Zaihui College of Chemistry and Chemical Engineering, Hunan Normal University, 410081, Changsha, P.R. China aut Zhong Sheng College of Chemistry and Chemical Engineering, Hunan Normal University, 410081, Changsha, P.R. China aut Jiang Xiangfen College of Chemistry and Chemical Engineering, Hunan Normal University, 410081, Changsha, P.R. China aut Yin Dulin College of Chemistry and Chemical Engineering, Hunan Normal University, 410081, Changsha, P.R. China aut Catalysis Letters Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 113/3-4(2007-02-01), 155-159 1011-372X 113:3-4<155 2007 113 10562 https://doi.org/10.1007/s10562-007-9018-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10562-007-9018-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Xiong Donglu College of Chemistry and Chemical Engineering, Hunan Normal University, 410081, Changsha, P.R. China aut NATIONALLICENCE 700 1- Fu Zaihui College of Chemistry and Chemical Engineering, Hunan Normal University, 410081, Changsha, P.R. China aut NATIONALLICENCE 700 1- Zhong Sheng College of Chemistry and Chemical Engineering, Hunan Normal University, 410081, Changsha, P.R. China aut NATIONALLICENCE 700 1- Jiang Xiangfen College of Chemistry and Chemical Engineering, Hunan Normal University, 410081, Changsha, P.R. China aut NATIONALLICENCE 700 1- Yin Dulin College of Chemistry and Chemical Engineering, Hunan Normal University, 410081, Changsha, P.R. China aut NATIONALLICENCE 773 0- Catalysis Letters Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 113/3-4(2007-02-01), 155-159 1011-372X 113:3-4<155 2007 113 10562 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer