scholarly journals Formation of macrocyclic ring systems by carbonylation of trifunctional P/B/B frustrated Lewis pairs

2018 ◽  
Vol 9 (6) ◽  
pp. 1544-1550 ◽  
Author(s):  
Long Wang ◽  
Shunxi Dong ◽  
Constantin G. Daniliuc ◽  
Lei Liu ◽  
Stefan Grimme ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Frustrated Lewis Pairs ◽  
Ring Systems ◽  
Macrocyclic Ring ◽  
Carbonylation Reaction ◽  
Lewis Pairs

The trifunctional P/B/B frustrated Lewis pairs11a–cfeaturing bulky aryl groups at phosphorus [Dmesp (a), Tipp (b), Mes* (c)] were synthesized. Compounds11a,breact with carbon monoxide and form the macrocyclic dimers17a,b, while the carbonylation reaction of the Mes*P/B/B FLP11cgives the macrocyclic trimer18c.

Palladium-catalyzed carbonylation of 1,5-cyclooctadiene. Effects of temperature and pressure

1991 ◽  
Vol 56 (3) ◽  
pp. 663-672 ◽  
Author(s):  
Curtis B. Anderson ◽  
Rade Marković
Keyword(s):  
Carbon Monoxide ◽  
Oxidative Carbonylation ◽  
Influence Of Temperature ◽  
Carbonylation Reaction ◽  
Palladium Catalyzed ◽  
Effects Of Temperature ◽  
Temperature And Pressure

The influence of temperature and carbon monoxide pressure on the course of oxidative carbonylation reaction of 1,5-cyclooctadiene in the presence of the palladium(II) salts as a catalyst, was investigated.

Bis(perchlorocatecholato)silane and Heteroleptic Bidonors: Hidden Frustrated Lewis Pairs by Ring Strain

2021 ◽  
Author(s):  
Deborah Hartmann ◽  
Sven Braner ◽  
Lutz Greb
Keyword(s):  
Ammonia Borane ◽  
Frustrated Lewis Pairs ◽  
Ring Strain ◽  
Frustrated Lewis Pair ◽  
Lewis Pairs

Bis(perchlorocatecholato)silane and bidentate N,N- or N,P-heteroleptic donors form hexacoordinated complexes. Depending on the ring strain and hemilability in the adducts, Frustrated Lewis pair reactivity with aldehydes and catalytic ammonia borane...

scholarly journals Supramolecular Systems Containing B–N Frustrated Lewis Pairs of Tris(pentafluorophenyl)borane and Triphenylamine Derivatives

2021 ◽  
Vol 03 (02) ◽  
pp. 174-183
Author(s):  
P. Chidchob ◽  
S. A. H. Jansen ◽  
S. C. J. Meskers ◽  
E. Weyandt ◽  
N. P. van Leest ◽  
...  
Keyword(s):  
Materials Science ◽  
Supramolecular Polymers ◽  
Frustrated Lewis Pairs ◽  
Paramagnetic Resonance ◽  
Donor And Acceptor ◽  
Donor Acceptor ◽  
Noncovalent Polymers ◽  
Electron Paramagnetic ◽  
Supramolecular Polymerization ◽  
Lewis Pairs

The introduction of a chemical additive to supramolecular polymers holds high potential in the development of new structures and functions. In this regard, various donor- and acceptor-based molecules have been applied in the design of these noncovalent polymers. However, the incorporation of boron–nitrogen frustrated Lewis pairs in such architectures is still rare despite their many intriguing properties in catalysis and materials science. The limited choices of suitable boron derivatives represent one of the main limitations for the advancement in this direction. Here, we examine the use of the commercially available tris(pentafluorophenyl)borane with various triphenylamine derivatives to create supramolecular B–N charge transfer systems. Our results highlight the importance of a proper balance between the donor/acceptor strength and the driving force for supramolecular polymerization to achieve stable, long-range ordered B–N systems. Detailed analyses using electron paramagnetic resonance and optical spectroscopy suggest that tris(pentafluorophenyl)borane displays complex behavior with the amide-based triphenylamine supramolecular polymers and may interact in dimers or larger chiral aggregates, depending on the specific structure of the triphenylamines.

Aromaticity can enhance the reactivity of P-donor/borole frustrated Lewis pairs

2019 ◽  
Vol 55 (5) ◽  
pp. 675-678 ◽  
Author(s):  
Jorge Juan Cabrera-Trujillo ◽  
Israel Fernández
Keyword(s):  
Frustrated Lewis Pairs ◽  
Key Factor ◽  
Novel Concept ◽  
Lewis Pairs

Herein we introduce a novel concept in FLP chemistry: aromaticity as the key factor enhancing the reactivity of FLPs.

Ring-opening of cyclopropanes by “frustrated Lewis pairs”

2010 ◽  
Vol 46 (47) ◽  
pp. 8947 ◽  
Author(s):  
Jason G. M. Morton ◽  
Meghan A. Dureen ◽  
Douglas W. Stephan
Keyword(s):  
Ring Opening ◽  
Frustrated Lewis Pairs ◽  
Lewis Pairs

Development of silica-supported frustrated Lewis pairs: highly active transition metal-free catalysts for the Z-selective reduction of alkynes

2016 ◽  
Vol 6 (3) ◽  
pp. 882-889 ◽  
Author(s):  
Kai C. Szeto ◽  
Wissam Sahyoun ◽  
Nicolas Merle ◽  
Jessica Llop Castelbou ◽  
Nicolas Popoff ◽  
...  
Keyword(s):  
Transition Metal ◽  
Lewis Acid ◽  
Selective Reduction ◽  
Frustrated Lewis Pairs ◽  
Acid Base ◽  
Metal Free ◽  
Highly Active ◽  
Active Transition ◽  
Lewis Pairs

Supported Lewis acid/base systems based have been prepared and characterized.

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