OBSERVAÇÃO DE HOMODÍMERO DO TIPO BIS-1,3-BENZODIOXONA SINTETIZADO VIA METÁTESE DE OLEFINAS DA PIPERINA CATALISADA POR PRÉ-CATALISADORES DE RU(II) NÃO COMERCIAIS

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dc.contributor.authorFernandes, Kerlane A.
dc.contributor.authorFrança, Aline Aparecida C.
dc.contributor.authorCosta, Ana Karina B.
dc.contributor.authorSilva, Eliada A. da
dc.contributor.authorLima-Neto, Benedito dos S.
dc.contributor.authorBatista, Nouga C.
dc.contributor.authorSá, José Luiz S.
dc.date.accessioned2024-05-15T20:08:08Z
dc.date.available2024-05-15T20:08:08Z
dc.date.issued2022
dc.description.abstractLN-1 and LN-2 are two Ru(II) complexes coordinated to the phosphine and amines simultaneously, each with two chlorides. PPh3 is the phosphine and the amine is piperidine (LN-1) and perhydroazepine (LN-2). The two compounds are complexes five-coordinated square pyramidal geometry, with the amine in the axial plane. LN-1 and LN-2 were tested for the first time as initiator for piperine self-metathesis olefin. The system variables chosen to this study were the reactional time (24, 48 and 72 h), catalyst:substrate ratio (1:1 and 1:10 mol) and temperature (25 e 50 ºC). Results were analyzed by GC-ME. None olefin metathesis product was noted in the experiments to 25 ºC for until 72 h, in any catalyst:substrate ration. However, to 50 ºC for 72 h, olefin metathesis product from piperine was observed. LN-1 presented yield of c.a. 29% of product in the mixture and LN-2 were c.a. 39%. The product is interesting and unheard, it has two 1,3-benzildiaxine groups, interleaved for one unsaturated carbon chain. In the experiments with catalyst:substrate ratio of 1:10 mol there was no product formation. The results were discussed in function of the electronic and steric properties of the ancillary ligand of LN1 and LN-2.
dc.identifier.doi10.21577/0100-4042.20170878
dc.identifier.issn0100-4042
dc.identifier.otherS0100-40422022000700777-scl
dc.identifier.urihttps://repositorio-aptaregional.agricultura.sp.gov.br/handle/123456789/1385
dc.relation.ispartofQuímica Nova
dc.titleOBSERVAÇÃO DE HOMODÍMERO DO TIPO BIS-1,3-BENZODIOXONA SINTETIZADO VIA METÁTESE DE OLEFINAS DA PIPERINA CATALISADA POR PRÉ-CATALISADORES DE RU(II) NÃO COMERCIAIS
dc.typeArtigos
oaire.citation.endPage781
oaire.citation.issue7
oaire.citation.startPage777
oaire.citation.volume45

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