Synthesis and structural characterization by LC-MS and NMR of a new semi-natural blue amino-based pyranoanthocyanin compound

• Type: Article in International Scientific Journal
• Date: 2016

Authors

Joana Oliveira (Author) FCUP; Fernandes, A (Author) Other; Victor de Freitas (Author) FCUP

Journal

Title: Tetrahedron Letters

Vol. 57

Pages: 1277-1281

ISSN: 0040-4039

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 17 Citations

Scopus - 20 Citations

Other information

Authenticus ID: P-00K-7AD

DOI: 10.1016/j.tetlet.2016.02.026

Abstract (EN): The synthesis and structural characterization by LC-MS and NMR of a new blue amino-based pyranoanthocyanin-derived pigment is presented from the reaction of A-type vitisin and 4-(dimethylamino)cinnamic acid. The structure of the new compound is similar to portisin B being the hydroxyl and or methoxyl groups from the cinnamyl moiety substituted by a dimethylamino group. The presence of this amino group is responsible for the extensive pi delocalization and by this, these new semi-natural pigments present an intense blue color.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 5