Results 211 to 220 of about 50,226 (257)
Some of the next articles are maybe not open access.
Decarboxylative functionalization of cinnamic acids
Organic & Biomolecular Chemistry, 2015Decarboxylative functionalization of α,β-unsaturated carboxylic acids is an emerging area that has been developed significantly in recent years.
Arun Jyoti, Borah, Guobing, Yan
openaire +2 more sources
THE MICROBIAL METABOLISM OF CINNAMIC ACID
Canadian Journal of Microbiology, 1964A strain of Pseudomanas isolated from soil with cinnamic acid as a sole carbon source was found to be simultaneously adapted to the utilization of cinnamic acid and phenylpropionic acid. During growth on either of these compounds, o-hydroxyphenylpropionic acid and 2,3-dihydroxyphenylpropionic acid were produced in the culture medium. The organism, when
E R, BLAKLEY, F J, SIMPSON
openaire +2 more sources
Metabolism of Cinnamic Acid and Hydroxy-Cinnamic Acids by Lactobacillus pastorianus var. quinicus
Nature, 1959PREVIOUS work has shown that caffeic acid, 3 : 4 dihydroxy-cinnamic acid is metabolized by Lactobacillus pastorianus var. quinicus 1,2 with the formation of dihydrocaffeic acid and ethyl catechol3. A pure culture of this organism was inoculated into a basal medium1 with the addition of 0.025 per cent cinnamic acid and 0.25 per cent fructose.
G C, WHITING, J G, CARR
openaire +2 more sources
A comparative vibrational and NMR study of cis-cinnamic acid polymorphs and trans-cinnamic acid
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2001The IR and Raman spectra of the two polymorphic forms (58 degree- and 68 degree-forms) of cis-cinnamic acid were measured, and the spectral differences discussed on the basis of the crystal structures of the two forms. The IR bands related to the COOH group differ in the frequencies and band shape, reflecting differences in the hydrogen bonding between
K, Hanai +4 more
openaire +2 more sources
Fragrance material review on cinnamic acid
Food and Chemical Toxicology, 2005A toxicologic and dermatologic review of cinnamic acid when used as a fragrance ingredient is presented.
C S, Letizia +4 more
openaire +2 more sources
Treatment of cinnamic acids with polyphosphoric acid
Journal of the Chemical Society, Chemical Communications, 1978Polyphosphoric acid has been found to isomerize cis-p-methoxycinnamic acid to trans-p-methoxycinnamic acid and to cleave a benzyl ether; however, there is no evidence for the previously reported trans- to cis-isomerization of cinnamic acids.
James Quick, Clifford Meltz
openaire +1 more source
Enzymatic Synthesis of Cinnamic Acid Derivatives
Biotechnology Letters, 2006Using Novozym 435 as catalyst, the syntheses of ethyl ferulate (EF) from ferulic acid (4-hydroxy 3-methoxy cinnamic acid) and ethanol, and octyl methoxycinnamate (OMC) from p-methoxycinnamic acid and 2-ethyl hexanol were successfully carried out in this study. A conversion of 87% was obtained within 2 days at 75 degrees C for the synthesis of EF.
Lee, G.-S., Widjaja, A., Ju, Y.-H.
openaire +2 more sources
Reduction of cinnamic acid to cinnamaldehyde and alcohol
Biochemical and Biophysical Research Communications, 1968Abstract The reduction of the carboxylgroup of phenylacrylic acids to form aldehydes and primary alcohols has long been inferred in the formation of lignin. In spite of the fact, that the stepwise reduction of ferulic acid (3-methoxy-4-hydroxycinnamic acid) to coniferylaldehyde and alcohol during the formation of lignin has been demonstrated in ...
G G, Gross, K H, Bolkart, M H, Zenk
openaire +2 more sources
Photodegradation of Cinnamic Acid in Different Media
Journal of Dispersion Science and Technology, 2008The photodegradation of cinnamic acid under UVB irradiation was evaluated in different vehicles, such as water solutions at different pH values, Tween‐20 micelles, liposomes, and O/W emulsions prepared with Xalifin 15 or Montanov 68 as emulsifiers. The increase of pH decreases the photodegradation of cinnamic acid in all the vehicles studied.
UGAZIO, Elena +5 more
openaire +2 more sources
Biotechnology and Bioprocess Engineering, 2012
To perform the lipase-catalyzed synthesis of L-ascorbic acid derivatives from plant-based compounds such as cinnamic and ferulic acid under mild reaction conditions, the activities of immobilized Candida ntarctica lipase with different cinnamic acid esters and substituted cinnamic acids were compared. As a result, immobilized C.
Yung-Hun Yang +10 more
openaire +1 more source
To perform the lipase-catalyzed synthesis of L-ascorbic acid derivatives from plant-based compounds such as cinnamic and ferulic acid under mild reaction conditions, the activities of immobilized Candida ntarctica lipase with different cinnamic acid esters and substituted cinnamic acids were compared. As a result, immobilized C.
Yung-Hun Yang +10 more
openaire +1 more source