Catalysed epoxidation and hydroxylation of alkene by osmium(<scp>III</scp>)–porphyrin complexes
作者:Chi-Ming Che、Wai-Cheung Chung
DOI:10.1039/c39860000386
日期:——
Osmium(III)–porphyrincomplexes have been prepared by Br2 oxidation of OsII(P)(PBun3)(CO) in CH2Cl2[H2P = H2OEP (octaethylporphyrin) and H2TPP (meso-tetraphenylporphyrin)]; the ‘OsIII(P)(PBun3)Br + PhlO’ system is capable of performing epoxidation and hydroxylation of systene and cyclohexene.
Br (III)-卟啉配合物是通过在CH 2 Cl 2 [H 2 P = H 2 OEP(八乙基卟啉)和H 2 TPP(meso )中的Os II(P)(PBu n 3)(CO)的Br 2氧化制备的。-四苯基卟啉)]; “ Os III(P)(PBu n 3)Br + PhlO”系统能够进行烯和环己烯的环氧化和羟基化反应。
Oxo-bridged metal carbene complexes. Synthesis, structure and reactivities of {[Os(Por)(CPh<sub>2</sub>)]<sub>2</sub>O} (Por = porphyrinato dianion)
作者:Yan Li、Jie-Sheng Huang、Zhong-Yuan Zhou、Chi-Ming Che
DOI:10.1039/b300441d
日期:——
Dinuclear μ-oxo osmium porphyrins containing terminal OsCPh2 bonds with a linear COs–O–OsC moiety were prepared, which are reactive toward pyridine to form [Os(Por)(CPh2)(py)] and are active catalysts for inter- and intra-molecular cyclopropanation of alkenes and for carbene insertion into saturated C–H bonds.