Buscar
Mostrando ítems 1-10 de 40
Photoisomerization of ionic liquid ammonium cinnamates: One-pot synthesis-isolation of Z-cinnamic acids
(American Chemical Society, 2010-11)
Photoisomerization presents the only direct method for contra-thermodynamic E-Z isomerization of olefins. Synthetic applications of this method have been limited by its reversible nature, which leads to a photostationary-state ...
Understanding the role played by protic ionic liquids (PILs) and the substituent effect for enhancing the generation of Z -cinnamic acid derivatives
(Royal Society of Chemistry, 2020-04)
Photoisomerization of a series of substituted E-cinnamic acids in MeCN in their acid forms and as their corresponding protic ionic liquids (PILs) with light of 300 nm is studied. The nature, strength, number, and position ...
Structure-antifungal activity relationship of cinnamic acid derivatives
(American Chemical Society, 2007-12-26)
A structure-antifungal activity relationship (SAR) study of 22 related cinnamic acid derivatives was carried out. Attention was focused on the antifungal activities exhibited against Aspergillus flavus, Aspergillus terreus, ...
Design and Effects of the Cinnamic Acids Chemical Structures as Organocatalyst on the Polymerization of Benzoxazines
(MDPI, 2020-07)
This study focuses on the catalytic effect of the two geometric isomers of a cinnamic acid derivative, E and Z-forms of 3-methoxycinnamic acid (3OMeCA), analyzing the influence of their chemical structures. E and Z-3OMeCA ...
Synthesis and antibacterial activity of difluoromethyl cinnamoyl amides
(Molecular Diversity Preservation International, 2020-02)
Series of novel amides of isoferulic acid, where the phenolic hydroxyl was replaced by a difluoromethyl group, were synthesized and their in vitro antibacterial activities assayed against fourteen bacterial strains (six ...
Antioxidant, gastroprotective, cytotoxic activities and uhplc pda-q orbitrap mass spectrometry identification of metabolites in baccharis grisebachii decoction
(Molecular Diversity Preservation International, 2019-03)
The decoction of the local plant Baccharis grisebachii is used as a digestive, gastroprotective, external cicatrizing agent and antiseptic in Argentine. A lyophilized decoction (BLD) from the aerial parts of this plant was ...
Phenolic acids composition and antioxidant activity of canola extracts in cooked beef, chicken and pork
(Elsevier, 2010-08)
Crude polyphenol extracts (15 or 100 mg gallic acid equivalents (GAE)/kg meat) from canola meal reduced the formation of 2-thiobarbituric acid-reactive substances (TBARS) in pre-cooked beef (66–92%), pork (43–75%) and ...
Molecular and physiological comparison of spoilage wine yeasts
(Wiley, 2013-04)
Aims: Dekkera bruxellensis and Pichia guilliermondii are contaminating yeasts in wine due to the production of phenolic aromas. Although the degradation pathway of cinnamic acids, precursors of these phenolic compounds has ...
NorHarmane containing ionic liquid matrices for low molecular weight MALDI-MS carbohydrate analysis: The perfect couple with α-cyano-4-hydroxycinnamic acid
(John Wiley & Sons Ltd, 2019-05)
Cinnamic acid derivatives, particularly α-cyano-4-hydroxycinnamic acid (E-α-cyano-4-hydroxycinnamic acid or (E)-2-cyano-3-(4-hydroxyphenyl)prop-2-enoate; CHCA), have been extensively used especially for protein and peptide ...