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- W4285193792 abstract "ONE-POT STUDY OF THE APPLICATION OF CATALYST FIRST-GENERATION GRUBBS IN METATHESIS REACTIONS OF PIPERINE AND EUGENOL: THE INFLUENCE OF THE DOUBLE- BOND TERMINAL. In this paper, the piperine (PIP) and eugenol (EUG) organic compounds were used as substrates in olefin metathesis reactions catalyzed by first-generation Grubbs catalyst (G1) – [RuCl2(PCy3)2(=CHPh)], Cy is cyclohexyl and Ph is phenyl, in a one-pot system. The reactions occurred at 50 ºC, for 24, 48, or 96 h using the two substrates simultaneously in the ratio Ru:PIP:EUG of 1:1:1 and 1:10:10 mol. The results were evaluated by GC-MS, discussed in terms of the electronic and steric characteristics of the G1, and the structural proprieties of the substrates. In the Ru:PIP:EUG ratio of 1:1:1 mol, a dimeric species was observed for the olefin metathesis of EUG, in all time studied and in an additional experiment at 70 ºC for 48 h. When the Ru:PIP:EUG ratio was 1:10:10 mol, this dimer was not observed. Isomerization processes also were observed at all temperatures and catalyst:substrates ratio. The reaction yield increased with the raise of substrates amount. There was no cross-metathesis reaction. This fact was attributed to the chelating effect of the double coordination of the PIP to the catalyst." @default.
- W4285193792 created "2022-07-14" @default.
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- W4285193792 date "2022-01-01" @default.
- W4285193792 modified "2023-10-16" @default.
- W4285193792 title "ESTUDO ONE-POT DA APLICAÇÃO DO CATALISADOR DE GRUBBS DE PRIMEIRA GERAÇÃO EM REAÇÕES DE METÁTESE DA PIPERINA E EUGENOL: A INFLUÊNCIA DA LIGAÇÃO DUPLA TERMINAL" @default.
- W4285193792 doi "https://doi.org/10.21577/0100-4042.20170901" @default.
- W4285193792 hasPublicationYear "2022" @default.
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