Intermolecular Redox-Neutral Amine C−H Functionalization Induced by the Strong Boron Lewis Acid B(C6 F5 )3 in the Frustrated Lewis Pair Regime

2017 ◽  
Vol 23 (19) ◽  
pp. 4723-4729 ◽  
Author(s):  
Guo-Qiang Chen ◽  
Gerald Kehr ◽  
Constantin G. Daniliuc ◽  
Markus Bursch ◽  
Stefan Grimme ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Frustrated Lewis Pair

Living polymerization of naturally renewable butyrolactone-based vinylidenes mediated by a frustrated Lewis pair

2021 ◽  
Vol 12 (38) ◽  
pp. 5548-5555
Author(s):  
Yun Bai ◽  
Huaiyu Wang ◽  
Jianghua He ◽  
Yuetao Zhang
Keyword(s):  
Lewis Acid ◽  
Living Polymerization ◽  
Controlled Polymerization ◽  
Frustrated Lewis Pair

The frustrated Lewis pair composed of an organophosphorus(iii) superbase and a bulky organoaluminum Lewis acid promoted the living/controlled polymerization of naturally renewable butyrolactone-based vinylidenes.

Developing carbon Lewis base/boron Lewis acid frustrated Lewis pair chemistry derived from conjugated dienamines

Tetrahedron ◽  
2019 ◽  
Vol 75 (5) ◽  
pp. 571-579 ◽  
Author(s):  
Jennifer Möricke ◽  
Florian Rehwinkel ◽  
Tobias Danelzik ◽  
Constantin G. Daniliuc ◽  
Birgit Wibbeling ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Lewis Base ◽  
Frustrated Lewis Pair

scholarly journals Exploiting the Electronic Tuneability of Carboranes as Supports for Frustrated Lewis Pairs

Molecules ◽  
2018 ◽  
Vol 23 (12) ◽  
pp. 3099 ◽  
Author(s):  
Amanda Benton ◽  
Zachariah Copeland ◽  
Stephen M. Mansell ◽  
Georgina M. Rosair ◽  
Alan J. Welch
Keyword(s):  
Lewis Acid ◽  
Michael Addition ◽  
Coupling Constants ◽  
Frustrated Lewis Pairs ◽  
Acid Component ◽  
Frustrated Lewis Pair ◽  
Lewis Pairs

The first example of a carborane with a catecholborolyl substituent, [1-Bcat-2-Ph-closo-1,2-C2B10H10] (1), has been prepared and characterized and shown to act as the Lewis acid component of an intermolecular frustrated Lewis pair in catalyzing a Michael addition. In combination with B(C6F5)3 the C-carboranylphosphine [1-PPh2-closo-1,2-C2B10H11] (IVa) is found to be comparable with PPh2(C6F5) in its ability to catalyze hydrosilylation, whilst the more strongly basic B-carboranylphosphine [9-PPh2-closo-1,7-C2B10H11] (V) is less effective and the very weakly basic species [μ-2,2ʹ-PPh-{1-(1ʹ-1ʹ,2ʹ-closo-C2B10H10)-1,2-closo-C2B10H10}] (IX) is completely ineffective. Base strengths are rank-ordered via measurement of the 1J 31P-77Se coupling constants of the phosphineselenides [1-SePPh2-closo-1,2-C2B10H11] (2), [9-SePPh2-closo-1,7-C2B10H11] (3), and [SePPh2(C6F5)] (4).

Gold catalyzed hydrogenations of small imines and nitriles: enhanced reactivity of Au surface toward H2via collaboration with a Lewis base

2014 ◽  
Vol 5 (3) ◽  
pp. 1082-1090 ◽  
Author(s):  
Gang Lu ◽  
Peng Zhang ◽  
Dongqing Sun ◽  
Lei Wang ◽  
Kebin Zhou ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Lewis Base ◽  
Frustrated Lewis Pair

Au (111) surface can serve as a Lewis acid to couple with a Lewis base (e.g. imine or nitrile) to form the Au-coupled FLP (frustrated Lewis pair, left) which can cleave H2, further achieving hydrogenation of small imines and nitriles.

scholarly journals Trioxatriangulenium (TOTA+) as a robust carbon-based Lewis acid in frustrated Lewis pair chemistry

2021 ◽  
Author(s):  
Aslam C. Shaikh ◽  
José M. Veleta ◽  
Jules Moutet ◽  
Thomas L. Gianetti
Keyword(s):  
Lewis Acid ◽  
Bond Cleavage ◽  
Stable Carbon ◽  
Lewis Bases ◽  
Frustrated Lewis Pair ◽  
Carbon Based

Frustration at carbon! Herein, we present a frustrated Lewis pair system derived from a water stable carbon-based Lewis acid, trioxatriangulene (TOTA+), and a variety of Lewis bases, which successfully promotes bond cleavage and molecule fixation.

1,2-Diphosphonium Dication: A Strong P-Based Lewis Acid in Frustrated Lewis Pair (FLP)-Activations of B–H, Si–H, C–H, and H–H Bonds

2015 ◽  
Vol 137 (23) ◽  
pp. 7298-7301 ◽  
Author(s):  
Michael H. Holthausen ◽  
Julia M. Bayne ◽  
Ian Mallov ◽  
Roman Dobrovetsky ◽  
Douglas W. Stephan
Keyword(s):  
Lewis Acid ◽  
Frustrated Lewis Pair

scholarly journals On the concept of frustrated Lewis pairs

2017 ◽  
Vol 375 (2101) ◽  
pp. 20170004 ◽  
Author(s):  
Frédéric-Georges Fontaine ◽  
Douglas W. Stephan
Keyword(s):  
Lewis Acid ◽  
Bond Formation ◽  
Frustrated Lewis Pairs ◽  
Metal Chemistry ◽  
Frustrated Lewis Pair ◽  
Acid And Base ◽  
Definition Of ◽  
Lewis Acid And Base ◽  
Pair Work ◽  
Lewis Pairs

In this concept article, we consider the notion of ‘frustrated Lewis pairs’ (FLPs). While the original use of the term referred to steric inhibition of dative bond formation in a Lewis pair, work in the intervening decade demonstrates the limitation of this simplistic view. Analogies to known transition metal chemistry and the applications in other areas of chemistry are considered. In the light of these findings, we present reflections on the criteria for a definition of the term ‘frustrated Lewis pair’. Segregation of the Lewis acid and base and the kinetic nature of FLP reactivity are discussed. We are led to the conclusion that, while an all-inclusive definition of FLP is challenging, the notion of ‘FLP chemistry’ is more readily recognized. This article is part of the themed issue ‘Frustrated Lewis pair chemistry’.

Expanding the Boundaries of Water-Tolerant Frustrated Lewis Pair Hydrogenation: Enhanced Back Strain in the Lewis Acid Enables the Reductive Amination of Carbonyls

2017 ◽  
Vol 129 (32) ◽  
pp. 9640-9644 ◽  
Author(s):  
Éva Dorkó ◽  
Márk Szabó ◽  
Bianka Kótai ◽  
Imre Pápai ◽  
Attila Domján ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Reductive Amination ◽  
Frustrated Lewis Pair
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