High-valent oxo complexes of osmium as selective oxidants for cyclohexene oxidation. Complexation of the bisamide tetradentate ligand bpb to osmium and the X-ray structure of trans-[osIII(bpb)(PPh3)Cl][bpbH2=N,N′-bis(2′-pyridine-carboxamide)-1,2-benzene]

Chi-Ming Che; Wing-King Cheng; Thomas C. W. Mak

doi:10.1039/C39860000200

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High-valent oxo complexes of osmium as selective oxidants for cyclohexene oxidation. Complexation of the bisamide tetradentate ligand bpb to osmium and the X-ray structure of trans-[os^III(bpb)(PPh₃)Cl][bpbH₂=N,N′-bis(2′-pyridine-carboxamide)-1,2-benzene]

Chi-Ming Che, Wing-King Cheng and Thomas C. W. Mak

Abstract

The reaction of N,N′-bis(2′-pyridinecarboxamide)-1,2-benzene (bpbH₂) with K₂[OsO₂(OH)₄] yielded trans-[Os^VI(bpbH₂)O₂]²⁺ which in turn gave trans-[Os^III(bpb)(PPh₃)Cl] upon treatment with PPh₃; the Os^III complex has been characterized by X-ray crystallography and found to catalyse the epoxidation of cyclohexene in the presence of iodosobenzene.

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DOI: https://doi.org/10.1039/C39860000200
Article type: Paper

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J. Chem. Soc., Chem. Commun., 1986, 200-202

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High-valent oxo complexes of osmium as selective oxidants for cyclohexene oxidation. Complexation of the bisamide tetradentate ligand bpb to osmium and the X-ray structure of trans-[os^III(bpb)(PPh₃)Cl][bpbH₂=N,N′-bis(2′-pyridine-carboxamide)-1,2-benzene]

C. Che, W. Cheng and T. C. W. Mak, J. Chem. Soc., Chem. Commun., 1986, 200 DOI: 10.1039/C39860000200

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Journal of the Chemical Society, Chemical Communications

High-valent oxo complexes of osmium as selective oxidants for cyclohexene oxidation. Complexation of the bisamide tetradentate ligand bpb to osmium and the X-ray structure of trans-[os^III(bpb)(PPh₃)Cl][bpbH₂=N,N′-bis(2′-pyridine-carboxamide)-1,2-benzene]

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High-valent oxo complexes of osmium as selective oxidants for cyclohexene oxidation. Complexation of the bisamide tetradentate ligand bpb to osmium and the X-ray structure of trans-[os^III(bpb)(PPh₃)Cl][bpbH₂=N,N′-bis(2′-pyridine-carboxamide)-1,2-benzene]

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