Zero-Valent Amino-Olefin Cobalt Complexes as Catalysts for Oxygen Atom Transfer Reactions from Nitrous Oxide

Thomas L. Gianetti; Rafael E. Rodríguez-Lugo; Jeffrey R. Harmer; Monica Trincado; Matthias Vogt; Gustavo Santiso-Quinones; Hansjörg Grützmacher

doi:10.1002/anie.201609173

Zero-Valent Amino-Olefin Cobalt Complexes as Catalysts for Oxygen Atom Transfer Reactions from Nitrous Oxide

Thomas L. Gianetti, Rafael E. Rodríguez-Lugo, Jeffrey R. Harmer, Monica Trincado, Matthias Vogt, Gustavo Santiso-Quinones, Hansjörg Grützmacher

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

Abstract

The synthesis and characterization of several zero-valent cobalt complexes with a bis(olefin)-amino ligand is presented. Some of these complexes proved to be efficient catalysts for the selective oxidation of secondary and allylic phosphanes, as well as diphosphanes, even with a direct P−P bond. With 5 mol % catalyst loadings the oxidations proceed under mild conditions (25–70 °C, 7–22 h, 2 bar N₂O) and afford good to excellent yields (65–98 %). In this process, the greenhouse gas N₂O is catalytically converted into benign N₂and added-value organophosphorus compounds, some of which are difficult to obtain otherwise.

Original language	English (US)
Pages (from-to)	15323-15328
Number of pages	6
Journal	Angewandte Chemie - International Edition
Volume	55
Issue number	49
DOIs	https://doi.org/10.1002/anie.201609173
State	Published - Dec 5 2016
Externally published	Yes

Keywords

NO activation
cobalt
nitrous oxide
phosphane oxidation

ASJC Scopus subject areas

Catalysis
General Chemistry

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10.1002/anie.201609173

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title = "Zero-Valent Amino-Olefin Cobalt Complexes as Catalysts for Oxygen Atom Transfer Reactions from Nitrous Oxide",

abstract = "The synthesis and characterization of several zero-valent cobalt complexes with a bis(olefin)-amino ligand is presented. Some of these complexes proved to be efficient catalysts for the selective oxidation of secondary and allylic phosphanes, as well as diphosphanes, even with a direct P−P bond. With 5 mol % catalyst loadings the oxidations proceed under mild conditions (25–70 °C, 7–22 h, 2 bar N2O) and afford good to excellent yields (65–98 %). In this process, the greenhouse gas N2O is catalytically converted into benign N2and added-value organophosphorus compounds, some of which are difficult to obtain otherwise.",

keywords = "NO activation, cobalt, nitrous oxide, phosphane oxidation",

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T1 - Zero-Valent Amino-Olefin Cobalt Complexes as Catalysts for Oxygen Atom Transfer Reactions from Nitrous Oxide

AU - Gianetti, Thomas L.

AU - Rodríguez-Lugo, Rafael E.

AU - Harmer, Jeffrey R.

AU - Trincado, Monica

AU - Vogt, Matthias

AU - Santiso-Quinones, Gustavo

AU - Grützmacher, Hansjörg

PY - 2016/12/5

Y1 - 2016/12/5

N2 - The synthesis and characterization of several zero-valent cobalt complexes with a bis(olefin)-amino ligand is presented. Some of these complexes proved to be efficient catalysts for the selective oxidation of secondary and allylic phosphanes, as well as diphosphanes, even with a direct P−P bond. With 5 mol % catalyst loadings the oxidations proceed under mild conditions (25–70 °C, 7–22 h, 2 bar N2O) and afford good to excellent yields (65–98 %). In this process, the greenhouse gas N2O is catalytically converted into benign N2and added-value organophosphorus compounds, some of which are difficult to obtain otherwise.

AB - The synthesis and characterization of several zero-valent cobalt complexes with a bis(olefin)-amino ligand is presented. Some of these complexes proved to be efficient catalysts for the selective oxidation of secondary and allylic phosphanes, as well as diphosphanes, even with a direct P−P bond. With 5 mol % catalyst loadings the oxidations proceed under mild conditions (25–70 °C, 7–22 h, 2 bar N2O) and afford good to excellent yields (65–98 %). In this process, the greenhouse gas N2O is catalytically converted into benign N2and added-value organophosphorus compounds, some of which are difficult to obtain otherwise.

KW - NO activation

KW - cobalt

KW - nitrous oxide

KW - phosphane oxidation

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JO - Angewandte Chemie - International Edition

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ER -

Zero-Valent Amino-Olefin Cobalt Complexes as Catalysts for Oxygen Atom Transfer Reactions from Nitrous Oxide

Abstract

Keywords

ASJC Scopus subject areas

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