Synthesis and Structural Characterization of Amino-Based Pyranoanthocyanins with Extended Electronic Delocalization

• Tipo: Artigo em Revista Científica Internacional
• Data: 2016

Autores

Joana Oliveira (Autor) FCUP; Araujo, P (Autor) Outra; Fernandes, A (Autor) Outra; Nuno Mateus (Autor) FCUP; Victor de Freitas (Autor) FCUP

Revista

Título: Synlett

Vol. 27

Páginas: 2459-2462

ISSN: 0936-5214

Editora: Thieme

Indexação

ISI Web of Knowledge - 13 Citações

Scopus - 14 Citações

Outras Informações

ID Authenticus: P-00M-7AV

DOI: 10.1055/s-0035-1562471

Abstract (EN): Two new pyranoanthocyanin amino derivatives with extended electronic delocalization were obtained from the reaction of methylpyranomalvidin-3-O-glucoside with two amino-derived cinnamaldehydes, 4-(dimethylamino)- and 4-(diethylamino)-cinnamaldehyde. Structural characterization revealed the presence of a butadienylidene linkage connecting the pyranoanthocyanin and the cinnamyl moieties. The unexpected red color presented by the new molecules is due to the presence of a dicationic form of the pigments at acidic pH as confirmed by ESI-MS.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4