전이금속 (Ru$^{3+}$, Ni$^{2+}$, Cu$^{2+}$, Pd$^{2+}$)-Polyaza(N$_4$) 착물의 합성과 올레핀 산화반응에 대한 촉매적 활성

  • 박유철 (경북대학교 자연과학대학 화학과) ;
  • 김성수 (경북대학교 자연과학대학 화학과) ;
  • 나훈길 (경북대학교 화학과) ;
  • 이동철 (경북대학교 자연과학대학 화학과) ;
  • 신상희 (경북대학교 자연과학대학 화학과) ;
  • 변종철 (제주대학교 자연과학대학 화학과)
  • Published : 19940400

Abstract

The Ru(Ⅲ), Ni(Ⅱ), Cu(Ⅱ), and Pd(Ⅱ) complexes of N$_4$-polydentate ligands(meso-Me$_6$-[14]-ane, rac-Me$_6$-[14]-ane, and cyclam) have been prepared and their catalytic activity and selectivity in the oxidation of olefins in the presence of oxidant such as NaOCl, H$_2$O$_2$, t-BuOOH, and PhIO studied. The oxidations of cyclohexene, 1-hexene, cyclooctene, 1-octene, and styrene as substrates have been investigated gas chromatographically. The Ru(Ⅲ)-N$_4$ complexes showed high selectivity for epoxide in the catalyzed oxidation of olefins with NaOCl. The catalytic activities of Ru(Ⅲ)-N$_4$ complexes were discussed in terms of the flexibility of N$_4$-polydentate ligands, the Ru(Ⅲ)-Cl bond interaction and the steric effect of oxidants. The oxidation of 1-octene using PhIO as oxidant was carried out to verify. The Pd(Ⅱ) complex turned out to be more active catalyst than the Ni(Ⅱ) complexes.

Keywords

References

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