ChemInform Abstract: A Novel and Efficient Route to (E)-Alk-1-enyl Boronic Acid Derivatives from (E)-1-(Trimethylsilyl)alk-1-enes and a Formal Suzuki-Miyaura Cross-Coupling Reaction Starting with Vinylsilanes.

ChemInform ◽  
2010 ◽  
Vol 27 (20) ◽  
pp. no-no
Author(s):  
G. M. FARINOLA ◽  
V. FIANDANESE ◽  
L. MAZZONE
Tetrahedron ◽  
2009 ◽  
Vol 65 (32) ◽  
pp. 6348-6353 ◽  
Author(s):  
Nicolas Primas ◽  
Alexandre Bouillon ◽  
Jean-Charles Lancelot ◽  
Sylvain Rault

2020 ◽  
Vol 23 (22) ◽  
pp. 2469-2488 ◽  
Author(s):  
Majid M. Heravi ◽  
Masoumeh Malmir ◽  
Razieh Moradi

: The palladium-catalyzed reaction of aryl halide and boronic acid for the formation of C–C bonds so-called Suzuki–Miyaura cross-coupling reaction has many applications in Modern Synthetic Organic Chemistry. In 2013, we emphasized the applications of the intramolecular Suzuki cross-coupling reaction in cyclization and heterocyclization. Due to a plethora relevant papers appeared in the chemical literature, herein, we wish to cover by updating our previous review, the applications of the intramolecular Suzuki cross-coupling reaction in cyclization and heterocyclization leading to various homocyclic and heterocyclic compounds reported during a period of 2013 to 2018.


Synthesis ◽  
2020 ◽  
Author(s):  
Nelson Luís C. Domingues ◽  
Beatriz F. dos Santos ◽  
Beatriz A. L. da Silva ◽  
Aline R. de Oliveira ◽  
Maria H. Sarragiotto ◽  
...  

AbstractA new and effective palladium catalyst supported on a magnesium organosilicate for application in the Heck reaction is presented. A group of compounds comprising 22 examples were synthesized in moderate to high yields (up to 99%) within a short time. The palladium supported on magnesium organosilicate catalyst was characterized as an amorphous solid by SEM, containing around 33% of palladium inside the solid, and even with this low quantity of palladium, the catalyst was very efficient in the Heck reaction. Besides, based on the Scherrer equation, the crystallite size of the synthesized palladium nanoparticles was ultrasmall (around 1.3 nm). This strategy is a simple and efficient route for the formation of C–C bonds via the Heck cross-coupling reaction.


2020 ◽  
Author(s):  
Dominique Forson ◽  
Xavier Verdaguer ◽  
Lluís Ribas de Pouplana ◽  
Antoni Riera ◽  
Enric Ros ◽  
...  

1,2,4,5-Tetrazines have become extremely useful tools in chemical biology. However, the synthesis of some challenging substrates such as 3,6-dialkyl-1,2,4,5-tetrazines is still a limitation for the widespread use of this class of compounds. Herein we describe an efficient route to these compounds based on the Sonogashira coupling of 3-bromo-6-methyl-1,2,4,5-tetrazine with terminal alkynes. The preparation of the starting reagent has been also optimized. The alkynyl products have been used as intermediates for the synthesis of dialkyl-tetrazines through a sequence of hydrogenation and re-oxidation with unprecedented yields. The synthetic applicability of this new approach is showcased through the preparation of several unnatural amino acids bearing alkynyl- and alkyl-1,2,4,5-tetrazine fragments.


2020 ◽  
Author(s):  
Dominique Forson ◽  
Xavier Verdaguer ◽  
Lluís Ribas de Pouplana ◽  
Antoni Riera ◽  
Enric Ros ◽  
...  

1,2,4,5-Tetrazines have become extremely useful tools in chemical biology. However, the synthesis of some challenging substrates such as 3,6-dialkyl-1,2,4,5-tetrazines is still a limitation for the widespread use of this class of compounds. Herein we describe an efficient route to these compounds based on the Sonogashira coupling of 3-bromo-6-methyl-1,2,4,5-tetrazine with terminal alkynes. The preparation of the starting reagent has been also optimized. The alkynyl products have been used as intermediates for the synthesis of dialkyl-tetrazines through a sequence of hydrogenation and re-oxidation with unprecedented yields. The synthetic applicability of this new approach is showcased through the preparation of several unnatural amino acids bearing alkynyl- and alkyl-1,2,4,5-tetrazine fragments.


RSC Advances ◽  
2014 ◽  
Vol 4 (49) ◽  
pp. 25576-25579 ◽  
Author(s):  
He-Ping Zhou ◽  
Jin-Biao Liu ◽  
Jian-Jun Yuan ◽  
Yi-Yuan Peng

An efficient palladium-catalyzed Suzuki cross-coupling reaction of N′-mesyl arylhydrazine with aryl boronic acid is described, which affords the corresponding biaryl compounds in high yields. This transformation proceeds through C–N bond cleavage under mild conditions.


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