Results 21 to 30 of about 32,884 (238)

Protonation and ring closure of stereoisomeric alpha-substituted cinnamic acids in superacidic media studied by 13C NMR spectroscopy and computations [PDF]

open access: yes, 1998
Five alpha-substituted cinnamic acids [(E)- and (Z)-2,3-diphenyl-, (E)- and (Z)-3-(2-methoxyphenyl)-2-phenyl- and (E)-2-(2-methoxyphenyl)-3-phenyl-propenoic acids] have been protonated in fluorosulfonic acid at -78 degrees C, Protonation of the ...
Burrichter, Arwed   +5 more
core   +1 more source

Antibacterial Activity of Methyl Cinnamate, Cinnamic Acid and Cinnamic Acid Derivatives Derived from Alpinia malaccensis Rhizomes

open access: yesInternational Journal of Agriculture and Biology, 2023
Alpinia malaccensis L. contains the largest phytochemical component, methyl cinnamate. The base hydrolysis of methyl cinnamate resulted cinnamic acid compound. In this study, were carried out isolation of methyl cinnamate, hydrolysis of methyl cinnamate into cinnamic acid and modification cinnamic acid through esterification, amidation, and ...
openaire   +1 more source

SYNTHESIS OF SOME CINNAMIC ACID DERIVATIVES: EFFECT OF GROUPS ATTACHED ON AROMATIC RING TO THE REACTIVITY OF BENZALDEHYDE

open access: yesIndonesian Journal of Chemistry, 2010
Synthesis of cinnamic acid and its six derivatives has been done by employing Knoevenagel reaction. Benzaldehyde, 4-butylbenzaldehyde, 4-t-butylbenzaldehyde, 4-butoxybenzaldehyde, 4-phenylbenzaldehyde, 5-bromo-2,4-dimethoxybenzaldehyde, and 5-bromo-2,3 ...
Marcellino Rudyanto, Lanny Hartanti
doaj   +1 more source

Biologically active compounds from selected aphyllophorales mycelial cultures [PDF]

open access: yes, 2014
The obtained results confirm the hypothesis that mycelial cultures of domestic species of aphyllophorales are able to accumulate biologically active metabolites.Uzyskane wyniki wskazują, że przebadane kultury mycelialne krajowych gatunków grzybów ...
Firlej, Anna   +2 more
core   +2 more sources

The expression of stlA in Photorhabdus luminescens is controlled by nutrient limitation [PDF]

open access: yes, 2013
Photorhabdus is a genus of Gram-negative entomopathogenic bacteria that also maintain a mutualistic association with nematodes from the family Heterorhabditis.
Bode, Helge Björn   +3 more
core   +7 more sources

Hydrogen-bonding interactions in the crystalline-phase structures of cinnamic acid derivatives [PDF]

open access: yes, 1999
Secondary interactions responsible for the crystalline-phase structures of various cinnamic acids and cinnamic acid esters drawn from the Cambridge Structural Database were studied with the help of the Cerius package implemented on an SGI workstation ...
Pálinkó, István
core   +1 more source

Studies of the physiology, pharmacology, and biochemistry of the auxins [PDF]

open access: yes, 1952
Several excellent reviews of auxin matters have appeared during the past few years dealing broadly with the subject as a whole, such as the Wisconsin Symposium on Plant Growth Substances whleh is referred to repeatedly below, as well as reviews of more ...
Bandurski­, Robert S., Bonner, James
core   +1 more source

Exploring the anti-biofilm activity of cinnamic acid derivatives in Candida albicans [PDF]

open access: yes, 2016
Some compounds, characterized by phenylethenyl moiety, such as methyl cinnamate and caffeic acid phenethyl ester, are able to inhibit C. albicans biofilm formation.
Costi, Roberta   +6 more
core   +1 more source

Antioxidant activities of polyphenols extracted from Perilla frutescens varieties [PDF]

open access: yes, 2008
Various cultivars of Perilla frutescens (L.) (var. crispa and var. frutescens) Britt. were harvested in China and Japan. They were easily differentiated on the basis of their foliage color, that varied from red to green.
Bin Li,   +3 more
core   +2 more sources

Novel chalcone-based fluorescent human histamine H 3 receptor ligands as pharmacological tools [PDF]

open access: yes, 2012
Novel fluorescent chalcone-based ligands at human histamine H(3) receptors (hH(3)R) have been designed, synthesized, and characterized. Compounds described are non-imidazole analogs of ciproxifan with a tetralone motif.
Tomasch, Miriam   +3 more
core   +1 more source

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