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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
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Polymorphic Phase Transformation in the 3-Bromo-trans-cinnamic Acid System
Journal of Solid State Chemistry, 2001Abstract 3-Bromo-trans-cinnamic acid (3-BrCA) exists as two crystalline polymorphic forms (designated as β and γ phases). A polymorphic phase transformation from the γ phase to the β phase has been investigated using ex situ powder X-ray diffraction, in situ high-temperature optical microscopy, and differential scanning calorimetry.
Shinbyoung Ahn +3 more
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1,10-Phenanthroline catalysed HCrO4 − oxidation of some substituted trans-cinnamic acids
Transition Metal Chemistry, 2004Catalytic activity of 1,10-phenanthroline(Phen) in the HCrO4− oxidation of substituted trans-cinnamic acids to the corresponding benzaldehydes, has been investigated in acidic medium. The CrVI–Phen complex is believed to be the probable electrophile in the catalysed oxidation.
Subbiah Meenakshisundaram +1 more
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The 2-hydroxylation of trans-cinnamic acid by chloroplasts from Melilotus alba desr
Archives of Biochemistry and Biophysics, 1974Abstract Chloroplasts isolated from sweetclover leaves contain an enzyme which converts trans -[3- 14 C]cinnamic acid to 2-hydroxy- trans -[3- 14 C]cinnamic ( o -coumaric) acid. The identity of the product has been verified by recrystallization with unlabeled o -coumaric acid to constant specific activity, and by gas-liquid cochromatography of ...
B, Gestetner, E E, Conn
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Adsorption Of Phenoxyacetic Acid And Trans-Cinnamic Acid On Hydroxyapatite
1990Adsorption characteristics of phenoxyacetic acid and trans-cinnamic acid were studied for two purposes: (i) to explore whether polymerization is initiated, like that of N- phenylglycine (NPG), in a system containing a monomeric resin with an adsorbate-treated synthetic hydroxyapatite, and (ii) to investigate their role in a bonding procedure of ...
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Antidiabetic effects, mechanisms of of p-methoxy-trans-cinnamic acid
2008p-Methoxycinnamic acid (p-MCA) is a cinnamic acid derivative that shows various pharmacologic actions such as neuroprotective and hepatoprotective activities. To examine the insulinotropic activity of p-MCA, the perfused rat pancreas and a pancreatic β-cell line, INS-1 were used in the studies.
Sirinthorn Yibchok-anun +2 more
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Trans-Cinnamic Acid and Some Related Compound Effects on Ornithogalum Caudatum Pollen
American Journal of Botany, 1968Fresh pollen of Ornithogalum caudatum was germinated in the absence or presence of trans‐cinnamic acid (t‐CA), trans‐cinnamaldehyde (t‐CAld) and related compounds, and germination percentage studied. Hydrocinnamic acid, t‐CA, and t‐CAld reduced germination to 50% of the control at 20–40 mg/liter.
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3,4-dimethoxy-trans-cinnamic acid from Nuphar variegatum
Phytochemistry, 1972T.P. Forrest, S. Ray
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2005
The hexane-soluble fraction of Salvia hypoleuca (Lamiaceac) collected from Iran, yielded a new trans-cinnamic Acid derived secondary metabolite named hypoleuenoic acid.
Ali, M. +3 more
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The hexane-soluble fraction of Salvia hypoleuca (Lamiaceac) collected from Iran, yielded a new trans-cinnamic Acid derived secondary metabolite named hypoleuenoic acid.
Ali, M. +3 more
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