scholarly journals SET processes in Lewis acid–base reactions: the tritylation of N-heterocyclic carbenes

2020 ◽  
Vol 11 (29) ◽  
pp. 7615-7618 ◽  
Author(s):  
Zhaowen Dong ◽  
Cristian Pezzato ◽  
Andrzej Sienkiewicz ◽  
Rosario Scopelliti ◽  
Farzaneh Fadaei-Tirani ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Radical Cations ◽  
Heterocyclic Carbenes ◽  
Electron Donors ◽  
Single Electron ◽  
Acid Base ◽  
Trityl Radical

Carbenes as single electron donors: the tritylation of N-heterocyclic carbenes proceeds via an initial SET step, giving highly reactive carbene radical cations and the trityl radical.

scholarly journals Sc3N@Ih-C80 as a novel Lewis acid to trap abnormal N-heterocyclic carbenes: the unprecedented formation of a singly bonded [6,6,6]-adduct

2016 ◽  
Vol 7 (3) ◽  
pp. 2331-2334 ◽  
Author(s):  
Muqing Chen ◽  
Lipiao Bao ◽  
Min Ai ◽  
Wangqiang Shen ◽  
Xing Lu
Keyword(s):  
Lewis Acid ◽  
Heterocyclic Carbenes ◽  
Acid Base ◽  
Base Pairs ◽  
Endohedral Metallofullerenes ◽  
Carbon Based

An unprecedented singly bonded [6,6,6]-adduct with an abnormal N-heterocyclic carbene structure, represents the first example of carbon-based Lewis acid–base pairs based on endohedral metallofullerenes.

Evidence for a Single Electron Shift in a Lewis Acid–Base Reaction

2018 ◽  
Vol 140 (45) ◽  
pp. 15419-15424 ◽  
Author(s):  
Zhaowen Dong ◽  
Hanna H. Cramer ◽  
Marc Schmidtmann ◽  
Lucas A. Paul ◽  
Inke Siewert ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Single Electron ◽  
Acid Base

A motif for heteronuclear CE (E = Si, Ge, Sn, Pb) bonding: Lewis acid–base pair strategy

2020 ◽  
Vol 22 (46) ◽  
pp. 26720-26727
Author(s):  
Jing Xu ◽  
Hai-feng Zheng ◽  
Wei Liu ◽  
Yi-hong Ding
Keyword(s):  
Lewis Acid ◽  
Base Pair ◽  
Heterocyclic Carbenes ◽  
Group 14 ◽  
Acid Base ◽  
Group 14 Elements

A universal CE motif for all the heavier group 14 elements utilizing N-heterocyclic carbenes and a Lewis acid–base pair strategy.

scholarly journals Aryl-NHC-group 13 trimethyl complexes: structural, stability and bonding insights

2017 ◽  
Vol 46 (3) ◽  
pp. 854-864 ◽  
Author(s):  
Melissa M. Wu ◽  
Arran M. Gill ◽  
Lu Yunpeng ◽  
Li Yongxin ◽  
Rakesh Ganguly ◽  
...  
Keyword(s):  
Structural Stability ◽  
Lewis Acid ◽  
Heterocyclic Carbenes ◽  
Theoretical Studies ◽  
Acid Base ◽  
Group 13 ◽  
Factors Affecting ◽  
The Stability

Treatment of aromatic N-substituted N-heterocyclic carbenes (NHCs) with trimethylgallium and -indium yielded the new Lewis acid–base adducts (as shown in the Figure). The steric and electronic factors affecting the stability of these complexes were quantified using percent buried volume, topographic steric maps and theoretical studies.

N-Heterocyclic Carbenes in Lewis Acid/Base Stabilised Phosphanylboranes

2008 ◽  
pp. NA-NA ◽  
Author(s):  
Ariane Adolf ◽  
Ulf Vogel ◽  
Manfred Zabel ◽  
Alexey Y. Timoshkin ◽  
Manfred Scheer
Keyword(s):  
Lewis Acid ◽  
Heterocyclic Carbenes ◽  
Acid Base

Nucleophilic boron strikes back

2012 ◽  
Vol 84 (11) ◽  
pp. 2219-2231 ◽  
Author(s):  
Henrik Gulyás ◽  
Amadeu Bonet ◽  
Cristina Pubill-Ulldemolins ◽  
Cristina Solé ◽  
Jessica Cid ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Heterocyclic Carbenes ◽  
Lewis Base ◽  
Acid Base ◽  
New Type

It has been demonstrated that the interaction of a simple Lewis base with tetraalkoxydiboranes generates an unusual nucleophilic character in one of the boryl moieties. The interaction of amines, N-heterocyclic carbenes (NHCs), and alkoxides with a diboron reagent results in the formation of a Lewis acid–base adduct, in which the formally intact sp2 boryl moiety becomes nucleophilic. We describe in this work the application of this new type of nucleophilic boron synthon in the selective preparation of organoboranes through β-boration and diboration reactions.

Solvation and redox properties of [Co(en)3]3+-[Co(en)3]2+ system

1980 ◽  
Vol 45 (2) ◽  
pp. 335-338 ◽  
Author(s):  
Adéla Kotočová ◽  
Ulrich Mayer
Keyword(s):  
Hydrogen Bond ◽  
Lewis Acid ◽  
Specific Interaction ◽  
Redox Properties ◽  
Solvation Effect ◽  
Interacting Particles ◽  
Acid Base ◽  
Polar Solvents ◽  
Oxidation Reduction ◽  
Solvent Molecules

The solvation effect of a number of nonaqueous polar solvents was studied on the oxidation-reduction properties of the [Co(en)3]3+-[Co(en)3]2+ system. Interactions of these ions with the solvent molecules are discussed in terms of their coordination, which is accompanied by a specific interaction of the Lewis acid-base type, namely formation of a hydrogen bond between the interacting particles. This is the main controlling factor of the redox properties of the studied system.

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