Understanding the Reactivity of Geminal P/B and P/Al Frustrated Lewis Pairs in CO2 Addition and H2 Activation

2021 ◽  
Author(s):  
Muhammad Dzulfahmi Ramadhan ◽  
Panida Surawatanawong
Keyword(s):  
Transition Metal ◽  
Frustrated Lewis Pairs ◽  
Metal Free ◽  
Co2 Addition ◽  
Lewis Pairs

Understanding CO2 addition and H2 activation by geminal P/Z (Z = B, Al) frustrated Lewis pairs (FLPs) is crucial for the development of transition metal-free catalysts for hydrogenation of unsaturated...

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.

Reversible, metal-free hydrogenactivation by frustrated Lewis pairs

2011 ◽  
Vol 40 (5) ◽  
pp. 1091-1097 ◽  
Author(s):  
Chunfang Jiang ◽  
Olivier Blacque ◽  
Thomas Fox ◽  
Heinz Berke
Keyword(s):  
Frustrated Lewis Pairs ◽  
Metal Free ◽  
Lewis Pairs

Hydrogenation of Olefins, Alkynes, Allenes, and Arenes by Borane-based Frustrated Lewis Pairs

Synthesis ◽  
2021 ◽  
Author(s):  
Felix Wech ◽  
Urs Gellrich
Keyword(s):  
Transition Metal ◽  
Hydride Transfer ◽  
Lewis Base ◽  
Catalytic Reactions ◽  
Transfer Reactions ◽  
Organic Substrates ◽  
Frustrated Lewis Pairs ◽  
Hydrogen Activation ◽  
Hydrogenation Catalysts ◽  
Lewis Pairs

In recent years, borane-based frustrated Lewis pairs proved to be efficient hydrogenation catalysts and became an alternative to transition metal-based systems. The hydrogen activation by classic FLPs leads to a protonated Lewis base and a borohydride. Consequently, hydrogenations catalyzed by classic FLPs consist of stepwise hydride transfer reactions and protonations (or vice versa). More recently, systems that operate via an initial hydroboration have allowed extending the substrate scope for FLP catalyzed hydrogenations. Within this review, hydrogenations of organic substrates catalyzed by borane-based frustrated Lewis pairs are discussed. Emphasis is given to the mechanistic aspects of these catalytic reactions.

Metal-Free Iodoperfluoroalkylation: Photocatalysis versus Frustrated Lewis Pair Catalysis

Synthesis ◽  
2020 ◽  
Vol 53 (01) ◽  
pp. 123-134
Author(s):  
Constantin Czekelius ◽  
Lucas Helmecke ◽  
Michael Spittler ◽  
Bernd M. Schmidt
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Reaction Pathways ◽  
Frustrated Lewis Pairs ◽  
Metal Free ◽  
Comprehensive Account ◽  
Frustrated Lewis Pair ◽  
Catalytic Metal ◽  
Lewis Pairs

A comparison of two catalytic, metal-free iodoperfluoro­alkylation protocols is presented. Frustrated Lewis pairs [ t Bu3P/B(C6F5)3] or phosphines/phosphites under visible light irradiation efficiently mediate the functionalization of non-activated alkenes and alkynes. A comprehensive account of the corresponding substrate scopes as well as insights into the mechanistic details of both reaction pathways are provided.

Designing metal-free frustrated Lewis pairs for dihydrogen activation based on a carbene–borane system

Polyhedron ◽  
2019 ◽  
Vol 162 ◽  
pp. 1-7 ◽  
Author(s):  
Shahnaz S. Rohman ◽  
Chayanika Kashyap ◽  
Sabnam S. Ullah ◽  
Ankur Kanti Guha
Keyword(s):  
Frustrated Lewis Pairs ◽  
Metal Free ◽  
Lewis Pairs

Metal-free Catalytic Olefin Hydrogenation: Low-Temperature H2 Activation by Frustrated Lewis Pairs

2012 ◽  
Vol 51 (40) ◽  
pp. 10164-10168 ◽  
Author(s):  
Lutz Greb ◽  
Pascual Oña-Burgos ◽  
Birgitta Schirmer ◽  
Stefan Grimme ◽  
Douglas W. Stephan ◽  
...  
Keyword(s):  
Low Temperature ◽  
Frustrated Lewis Pairs ◽  
Olefin Hydrogenation ◽  
Metal Free ◽  
Lewis Pairs
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