2011
DOI: 10.1002/ange.201006901
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Geminal Phosphorus/Aluminum‐Based Frustrated Lewis Pairs: CH versus CC Activation and CO2 Fixation

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Cited by 127 publications
(83 citation statements)
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“…[2] An advantage of these aluminum compounds is the inherently high Lewis acidity of aluminum atoms, which do not need an activation by electron withdrawing fluorinated substituents. The outstanding properties of these FLPs allowed the activation or complexation of various substrates such as carbon dioxide, [3][4][5] terminal alkynes, [3,6] alkenes, [7] hydrogen, [8] carbonyl compounds, [9] isocyanates, [5] hydrogen halides, [10] or transition metal complexes. [11] Their specific acceptor and donor capability was used for the unprecedented solubilization of alkali metal hydrides in hydride transfer reactions [12] and phase-transfer catal-of the C=O groups to the Lewis acidic aluminum and the Lewis basic phosphorus atoms (4 to 6).…”
Section: Introductionmentioning
confidence: 99%
“…[2] An advantage of these aluminum compounds is the inherently high Lewis acidity of aluminum atoms, which do not need an activation by electron withdrawing fluorinated substituents. The outstanding properties of these FLPs allowed the activation or complexation of various substrates such as carbon dioxide, [3][4][5] terminal alkynes, [3,6] alkenes, [7] hydrogen, [8] carbonyl compounds, [9] isocyanates, [5] hydrogen halides, [10] or transition metal complexes. [11] Their specific acceptor and donor capability was used for the unprecedented solubilization of alkali metal hydrides in hydride transfer reactions [12] and phase-transfer catal-of the C=O groups to the Lewis acidic aluminum and the Lewis basic phosphorus atoms (4 to 6).…”
Section: Introductionmentioning
confidence: 99%
“…Aminen durch FLPs fand bisher nur wenig Beachtung. Wir setzten daher das einfach zugängliche FLP 1, [11] das über eine geminale Anordnung von Aluminium-und Phosphoratomen verfügt, mit BH 3 ·THF, NH 3 und Aminboranen (H 3 B·NR 2 H;[12] R = H und Me) um. Alternative Reaktionswege sollten entweder zu den aktivierten Spezies 2,3 A oder den Addukten 2,3 B führen (Schema 1).…”
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“…[14,15] Da das FLP 1 nicht mit Diwasserstoff unter Adduktbildung reagiert, [11] kçnnte es die Wasserstoffeliminierung aus Aminboranen mit hydridischen H-Atomen in den B-H-und protischen H-Atomen in den N-H-Gruppen begünstigen. [16,17] [18] zeigt eine BH 3 -Gruppe (B1-P1 196.7(2) pm) mit einer verlängerten B-H-Bindung, die an einer B-H-Al-3c-2e-Bindung [19] beteiligt ist (B1-H11 124(2), Al1-H11 192(2) pm).…”
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