Coexistence of Lewis Acid and Base Functions: A Generalized View of the Frustrated Lewis Pair Concept with Novel Implications for Reactivity

2013 ◽  
pp. 27-57 ◽  
Author(s):  
Heinz Berke ◽  
Yanfeng Jiang ◽  
Xianghua Yang ◽  
Chunfang Jiang ◽  
Subrata Chakraborty ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Frustrated Lewis Pair ◽  
Acid And Base ◽  
Base Functions ◽  
Lewis Acid And Base

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’.

scholarly journals Lewis acid / Base-free Strategy for the Synthesis of 2-Arylthio and Selenyl Benzothiazole / Thiazole and Imidazole

2021 ◽  
Vol 27 (1) ◽  
pp. 17-23
Author(s):  
Guniganti Balakishan ◽  
Gullapalli Kumaraswamy ◽  
Vykunthapu Narayanarao ◽  
Pagilla Shankaraiah
Keyword(s):  
Lewis Acid ◽  
Bond Formation ◽  
Acid Base ◽  
Mechanistic Pathway ◽  
Wide Range ◽  
Acid And Base ◽  
Lewis Acid And Base ◽  
Sulfur Bond

Abstract A Cu(II)-catalyzed Csp2-Se and Csp2-Sulfur bond formation was achieved with moderate to good yields without the aid of Lewis acid and base. The reaction is compatible with a wide range of heterocycles such as benzothiazole, thiazole, and imidazole. Also, this typical protocol is found to be active in thio-selenation via S-H activation. Additionally, we proposed a plausible mechanistic pathway involving Cu(III) putative intermediate.

Combined theoretical and experimental study on alcoholysis of amides on CeO2 surface: A catalytic interplay between Lewis acid and base sites

2018 ◽  
Vol 303 ◽  
pp. 256-262 ◽  
Author(s):  
Takashi Kamachi ◽  
S.M.A. Hakim Siddiki ◽  
Yoshitsugu Morita ◽  
Md. Nurnobi Rashed ◽  
Kenichi Kon ◽  
...  
Keyword(s):  
Experimental Study ◽  
Lewis Acid ◽  
Acid And Base ◽  
Lewis Acid And Base

Role of the Surface Lewis Acid and Base Sites in the Adsorption of CO2 on Titania Nanotubes and Platinized Titania Nanotubes: An in Situ FT-IR Study

2013 ◽  
Vol 117 (24) ◽  
pp. 12661-12678 ◽  
Author(s):  
Kaustava Bhattacharyya ◽  
Alon Danon ◽  
Baiju K.Vijayan ◽  
Kimberly A. Gray ◽  
Peter C. Stair ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Titania Nanotubes ◽  
Acid And Base ◽  
Ft Ir ◽  
Ir Study ◽  
Adsorption Of Co2 ◽  
Lewis Acid And Base

scholarly journals Ruthenium catalysis in organic synthesis

2002 ◽  
Vol 74 (1) ◽  
pp. 19-24 ◽  
Author(s):  
Shun-Ichi Murahashi ◽  
Hikaru Takaya ◽  
Takeshi Naota
Keyword(s):  
Organic Synthesis ◽  
Lewis Acid ◽  
Catalytic Reactions ◽  
Biologically Active ◽  
Hydride Complexes ◽  
Base Catalysts ◽  
Acid And Base ◽  
Ruthenium Catalysis ◽  
Lewis Acid And Base ◽  
Neutral Conditions

Ruthenium, rhodium, iridium, and rhenium hydride complexes are highly useful redox Lewis acid and base catalysts. Various substrates bearing hetero atoms are activated by these catalysts and undergo reactions with either nucleophiles or electrophiles under neutral conditions. These types of catalytic reactions are described together with their application to the preparation of various biologically active compounds.

ChemInform Abstract: ACID AZIDES- PART V - LEWIS ACID- AND BASE-CATALYZED DECOMPOSITIONS OF AZIDES

1977 ◽  
Vol 8 (37) ◽  
pp. no-no
Author(s):  
A. F. FAHMY ◽  
G. HOSNI ◽  
H. ABDEL FADEEL
Keyword(s):  
Lewis Acid ◽  
Acid And Base ◽  
Lewis Acid And Base
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