Leaching Mechanism of Different Palladium Surface Species in Heck Reactions of Aryl Bromides and Chlorides

ACS Catalysis ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 6030-6041 ◽  
Author(s):  
Christoph Gnad ◽  
Andrea Abram ◽  
Alexander Urstöger ◽  
Florian Weigl ◽  
Michael Schuster ◽  
...  
Keyword(s):  
Surface Species ◽  
Heck Reactions ◽  
Aryl Bromides ◽  
Palladium Surface ◽  
Leaching Mechanism

Model Guided Development of a Simple Catalytic Method for the Synthesis of Unsymmetrical Stilbenes by Sequential Heck Reactions of Aryl Bromides with Ethylene

2018 ◽  
Vol 360 (14) ◽  
pp. 2678-2690 ◽  
Author(s):  
Helen Barlow ◽  
Jonas Y. Buser ◽  
Hendrik Glauninger ◽  
Carla V. Luciani ◽  
Joseph R. Martinelli ◽  
...  
Keyword(s):  
Heck Reactions ◽  
Catalytic Method ◽  
Aryl Bromides

scholarly journals Heck Reactions of Acrolein or Enones and Aryl Bromides - Synthesis of 3-Aryl Propenals or Propenones and Consecutive Application in Multicomponent Pyrazole Syntheses

2020 ◽  
Vol 2020 (14) ◽  
pp. 2086-2092 ◽  
Author(s):  
Marvin Stephan ◽  
Jesco Panther ◽  
Fabio Wilbert ◽  
Pauline Ozog ◽  
Thomas J. J. Müller
Keyword(s):  
Heck Reactions ◽  
Aryl Bromides

scholarly journals Phosphinocyclodextrins as confining units for catalytic metal centres. Applications to carbon–carbon bond forming reactions

2014 ◽  
Vol 10 ◽  
pp. 2388-2405 ◽  
Author(s):  
Matthieu Jouffroy ◽  
Rafael Gramage-Doria ◽  
David Sémeril ◽  
Dominique Armspach ◽  
Dominique Matt ◽  
...  
Keyword(s):  
Coupling Reactions ◽  
Heck Reactions ◽  
Nmr Studies ◽  
Carbon Bond ◽  
Bond Forming ◽  
Phosphine Complexes ◽  
Aryl Bromides ◽  
Carbon Carbon Bond ◽  
Bond Forming Reactions ◽  
Cyclodextrin Cavity

The capacity of two cavity-shaped ligands, HUGPHOS-1 and HUGPHOS-2, to generate exclusively singly phosphorus-ligated complexes, in which the cyclodextrin cavity tightly wraps around the metal centre, was explored with a number of late transition metal cations. Both cyclodextrin-derived ligands were assessed in palladium-catalysed Mizoroki–Heck coupling reactions between aryl bromides and styrene on one hand, and the rhodium-catalysed asymmetric hydroformylation of styrene on the other hand. The inability of both chiral ligands to form standard bis(phosphine) complexes under catalytic conditions was established by high-pressure NMR studies and shown to have a deep impact on the two carbon–carbon bond forming reactions both in terms of activity and selectivity. For example, when used as ligands in the rhodium-catalysed hydroformylation of styrene, they lead to both high isoselectivity and high enantioselectivity. In the study dealing with the Mizoroki–Heck reactions, comparative tests were carried out with WIDEPHOS, a diphosphine analogue of HUGPHOS-2.

Heck Reactions of Aryl Bromides with Alk-1-en-3-ol Derivatives Catalyzed by a Tetraphosphine/Palladium Complex.

ChemInform ◽  
2004 ◽  
Vol 35 (44) ◽  
Author(s):  
Florian Berthiol ◽  
Henri Doucet ◽  
Maurice Santelli
Keyword(s):  
Palladium Complex ◽  
Heck Reactions ◽  
Aryl Bromides

Heck reactions of aryl bromides with alk-1-en-3-ol derivatives catalysed by a tetraphosphine/palladium complex

2004 ◽  
Vol 45 (29) ◽  
pp. 5633-5636 ◽  
Author(s):  
Florian Berthiol ◽  
Henri Doucet ◽  
Maurice Santelli
Keyword(s):  
Palladium Complex ◽  
Heck Reactions ◽  
Aryl Bromides

Highly Selective Palladium-Catalyzed Heck Reactions of Aryl Bromides with Cycloalkenes

1999 ◽  
Vol 1 (5) ◽  
pp. 709-711 ◽  
Author(s):  
Christian G. Hartung ◽  
Klaus Köhler ◽  
Matthias Beller
Keyword(s):  
Heck Reactions ◽  
Aryl Bromides ◽  
Palladium Catalyzed
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