Naslov
Dimeric chloride azobenzene palladacycles as catalysts for solid-state Suzuki-Miyaura reaction

Autori
Pajić, Mario ; Barišić, Dajana ; Babić, Darko ; Juribašić Kulcsár, Marina ; Ćurić, Manda

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
6. simpozij studenata doktorskih studija PMF-a : knjiga sažetaka = 6th Faculty of Science PhD student symposium : book of abstracts / Schneider, Petra ; Đaković, Marijana ; Korać, Petra ; Lukić, Aleksandar ; Marušić-Paloka, Eduard ; Novak, Predrag ; Pezelj, Đurđica ; Pikelj, Kristina ; Smolčić, Vernesa - Zagreb : Prirodoslovno-matematički fakultet Sveučilišta u Zagrebu, 2022, 282-283

ISBN
978-953-6076-93-2

Skup
6. Simpozij studenata doktorskih studija PMF-a = 6th Faculty of Science PhD Student Symposium

Mjesto i datum
Zagreb, Hrvatska, 23.04.2022. - 24.04.2022

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
Suzuki-Miyaura reaction ; Solid-state ; Mechanochemistry ; Palladacycles ; Catalysis

Sažetak
Metalacyclic complexes are the most commonly used catalysts for cross-coupling processes, such as Suzuki-Miyaura, Mizoroki-Heck, and Sonogashira reactions. Their properties, applicability, and catalytic potential largely depend on the specific surrounding of the metal center and structural properties of coordinating ligands, such as the presence of electron-donating or electron- withdrawing substituents. In the development of new catalysts, different ligands were usually used. However, the correlation between ligand properties and reactivity often remained unexplored. Moreover, newly synthesized catalysts often contain bulky ligands that reduce their solubility in most solvents. Therefore, the introduction of solid-state methods in organic synthesis represents an alternative, environmentally friendly, and sustainable method that bypasses the use of solvents and avoids problems with the solubility of catalysts or reactants. In this work, we report a solid-state Suzuki-Miyaura cross-coupling reaction between 4 bromoazobenzene and phenylboronic acid as an arylation agent catalyzed by several phosphine free azobenzene palladacycles with dimeric structure and bridging chloride ligands. The influence of different 4, 4´-substituents of the azobenzene ligand on catalytic properties of palladacycles was investigated. All reactions were monitored by in situ Raman spectroscopy, which provided insight into the catalytic efficiency of the dimeric azobenzene monopalladated complexes.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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