Naslov
Mechanistic insight into solid-state C-H bond activation in azobenzene by palladium(II) chloride

Autori
Bjelopetrović, Alen ; Lukin, Stipe ; Barišić, Dajana ; Pajić, Mario ; Ćurić, Manda

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

Izvornik
27th Croatian Meeting of Chemists and Chemical Engineers and 5th Symposium Vladimir Prelog : Book of Abstracts / Marković, Dean ; Meštrović, Ernest ; Namjesnik, Danijel ; Tomašić, Vesna - Zagreb : Hrvatsko kemijsko društvo, 2021, 184-184

Skup
27. hrvatski skup kemičara i kemijskih inženjera ; 5. Simpozij Vladimir Prelog = 27th Croatian Meeting of Chemists and Chemical Engineers ; 5th Symposium Vladimir Prelog

Mjesto i datum
Zagreb, Hrvatska; Veli Lošinj, Hrvatska, 05.10.2021. - 08.10.2021

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
solid state ; azobenzene ; palladium ; cyclopalladation ; Raman monitoring

Sažetak
The recent advances of solid-state synthetic methods led to their application in the synthesis of palladacycles via C-H bond activation, a process known as cyclopalladation. Since palladacycles are crucial intermediates in many organic reactions mediated by palladium catalysts, a thorough understanding of cyclopalladation pathways of different organic substrates is essential. In contrast to the mechanism of palladation that is widely explored in solutions, a mechanistic study of the solid-state C–H bond activation is still in its early stages. We have studied a mechanism of the ligand-directed C–H bond activation in azobenzene with palladium(II) chloride under mechanochemical conditions by in situ Raman monitoring and ex situ 1H-NMR spectroscopy. In situ Raman monitoring revealed that solid-state dicyclopalladation azobenzene is a multi-step process including the formation of coordination and monocyclopalladated species as intermediates. Our results indicated that the mechanism of solid- state dicyclopalladation of azobenzene differs from that observed for the analog reaction in solution.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA