Results 221 to 230 of about 50,226 (257)

Non-natural cinnamic acid derivatives as substrates of cinnamate 4-hydroxylase

Phytochemistry, 2007
Cinnamate 4-hydroxylase (C4H), a monooxygenase in the plant phenylpropanoid pathway, was assayed for its ability to hydroxylate 29 substrate analogues. Nine of the tested analogues with various aromatic side chains, including 3-coumaric acid, were metabolized by C4H.
Hao, Chen, Hanxiao, Jiang, John A, Morgan   +2 more
openaire   +2 more sources

The Dimerization of Cinnamic Acid Derivatives

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
openaire   +2 more sources

Cinnamic acid hydroxylase in spinach

Phytochemistry, 1965
Abstract An acetone precipitate from an extract of spinach leaves catalysed the hydroxylation of trans-cinnamic acid to p-coumaric acid. The enzyme was unstable and could not be purified. Crude preparations had a pH optimum of 4–6 and showed an absolute requirement for an external electron donor. Tetrahydrofolic acid and a reduced pyridine nucleotide
P.M. Nair, L.C. Vining
openaire   +1 more source

Structure of a cinnamic acid derivative

Acta Crystallographica Section C Crystal Structure Communications, 1992
C 26 H 29 NO 2 cristallise dans P2 1 2 1 2 1 avec a=9,777, b=10,211, c=22,585A, Z=4; affinement jusqu'a R=0,043. Le groupement isocyano est syn par rapport a l'atome O du carbonyl et cis par rapport au groupement phenyl. Ce phenyl forme un angle de rotation de 29° par rapport au plan du systeme conjugue π adjacent.
M. Dyrbusch, E. Egert
openaire   +1 more source

(η2-Cinnamic)tetracarbonyliron acids. synthesis and acidity

Journal of Organometallic Chemistry, 1977
Abstract (η2-cinnamic)tetracarbonyliron acids [(η2-XC6H4CHCHCOOH) Fe(CO)4] (X = H, 3-OMe, 4-OMe, 4-Me, 3-Cl, 4-CI) have been prepared and their PKa's measured spectrophotometrically. The measured acidities indicate that the [Fe(CO)4] group is electron releasing.
G. Reichenbach, G. Cardaci, G.G. Aloisi
openaire   +1 more source

High-yield synthesis of bioactive ethyl cinnamate by enzymatic esterification of cinnamic acid

Food Chemistry, 2016
In this paper, Lipozyme TLIM-catalyzed synthesis of ethyl cinnamate through esterification of cinnamic acid with ethanol was studied. In order to increase the yield of ethyl cinnamate, several media, including acetone, isooctane, DMSO and solvent-free medium, were investigated in this reaction.
Yun, Wang, Dong-Hao, Zhang, Jiang-Yan, Zhang, Na, Chen, Gao-Ying, Zhi   +4 more
openaire   +2 more sources

Cinnamic acid

Food and Cosmetics Toxicology, 1978
openaire   +2 more sources

Probing the structure-antioxidant activity relationships of four cinnamic acids porous starch esters

Carbohydrate Polymers, 2021
Yunxiang Ma
exaly  

METHOXYMERCURATION OF THE CINNAMIC ACIDS

The Journal of Organic Chemistry, 1954
W. R. R. PARK, GEORGE F WRIGHT
openaire   +1 more source

Recent Advances of Cinnamic Acids in Organic Synthesis

Asian Journal of Organic Chemistry, 2020
Guobing Yan, Dayun Huang
exaly