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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 38, Number 4
JKCSEZ 38(4)
August 20, 1994 

 
Title
Synthesis and Catalytic Activity of Transition Metal (Ru3+, Ni2+, Cu2+, Pd2+)-Polyaza(N4) Complexes for Olefin Oxidation

전이금속 (Ru3+, Ni2+, Cu2+, Pd2+)-Polyaza(N4) 착물의 합성과 올레핀 산화반응에 대한 촉매적 활성
Author
Yu Chul Park, Seong Su Kim, Hun Gil Na, Dong Cheol Lee, Sang Hee Shin, Chong Chul Byun

박유철, 김성수, 나훈길, 이동철, 신상희, 변종철
Keywords
Abstract
N4-polydentate 리간드(meso-Me6-[14]-ane, rac-Me6-[14]-ane, and cyclam)의 Ru(Ⅲ), Ni(Ⅱ), Cu(Ⅱ) 및 Pd(Ⅱ)금속이온 착물을 합성하여 NaOCl, H2O2, t-BuOOH, 및 PhIO 등의 산화제를 사용하므로서 몇 가지 올레핀 산화반응에서 각 착물의 촉매적 활성과 선택성을 연구하였다. substrate(cyclohexene, 1-hexene, cyclooctene, 1-octene, 및 styrene)의 산화반응 생성물질은 가스 크로마토그래프 방법으로 확인하였다. Ru(Ⅲ)-N4 착물은 올레핀의 촉매적 산화반응에서 산화제로 NaOCl을 사용하였을 때, 생성물질 epoxide에 대하여 상당히 높은 선택성을 나타내었다. Ru(Ⅲ)-N4 착물의 촉매적 활성도는 N4-polydentate리간드의 flexibility, Ru(Ⅲ)-Cl의 결합 상호작용, 및 산화제로 PhIO를 사용한 1-octane의 산화반응에서 살펴 보았으며, 이 산화반응에서 Pd(Ⅱ)착물이 Ni(Ⅱ) 및 Cu(Ⅱ)착물들보다 높은 활성을 나타내었다.

The Ru(Ⅲ), Ni(Ⅱ), Cu(Ⅱ), and Pd(Ⅱ) complexes of N4-polydentate ligands(meso-Me6-[14]-ane, rac-Me6-[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, H2O2, 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)-N4 complexes showed high selectivity for epoxide in the catalyzed oxidation of olefins with NaOCl. The catalytic activities of Ru(Ⅲ)-N4 complexes were discussed in terms of the flexibility of N4-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.

Page
295 - 301
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