Cinnamic acid derivative rare-earth dinuclear complexes and one-dimensional architectures: synthesis, characterization and magnetic properties

2017 ◽  
Vol 46 (12) ◽  
pp. 3943-3952 ◽  
Author(s):  
Ouafa Khalfaoui ◽  
Adel Beghidja ◽  
Jérôme Long ◽  
Ahlem Boussadia ◽  
Chahrazed Beghidja ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Rare Earth ◽  
Acid Derivative ◽  
Cinnamic Acid ◽  
Slow Relaxation ◽  
Dinuclear Complexes ◽  
Cinnamic Acid Derivative ◽  
One Dimensional ◽  
Derivatives Of

Discrete and extended architectures based on two derivatives of cinnamic acid show slow relaxation of the magnetisation.

Ficusanolide A and ficusanolide B, two new cinnamic acid derivative stereoisomers and other constituents of the stem barks of Ficus exasperata Vahl. (Moraceae)

2021 ◽  
Vol 43 ◽  
pp. 150-153
Author(s):  
Stevine Claudiale Popwo Tameye ◽  
Ahri Bernie Djamen Mbeunkeu ◽  
Yannick Fouokeng ◽  
Nathalie Samantha Jouwa Tameye ◽  
Georges Bellier Tabekoueng ◽  
...  
Keyword(s):  
Acid Derivative ◽  
Cinnamic Acid ◽  
Cinnamic Acid Derivative

Synthesis, characterization, and computational study of the supramolecular arrangement of a novel cinnamic acid derivative

2017 ◽  
Vol 23 (2) ◽  
Author(s):  
S. S. Oliveira ◽  
L. G. Santin ◽  
L. R. Almeida ◽  
L. A. Malaspina ◽  
C. Lariucci ◽  
...  
Keyword(s):  
Acid Derivative ◽  
Cinnamic Acid ◽  
Computational Study ◽  
Cinnamic Acid Derivative

scholarly journals Cinnamic Acid Derivatives as α-Glucosidase Inhibitor Agents

2017 ◽  
Vol 17 (1) ◽  
pp. 151 ◽  
Author(s):  
Teni Ernawati ◽  
Maksum Radji ◽  
Muhammad Hanafi ◽  
Abdul Mun’im ◽  
Arry Yanuar
Keyword(s):  
Functional Groups ◽  
Cinnamic Acid ◽  
Phenyl Group ◽  
Chemical Compounds ◽  
Cinnamic Acid Derivative ◽  
Cinnamic Acid Derivatives ◽  
Glucosidase Inhibitor ◽  
Glucosidase Inhibitors ◽  
Derivatives Of ◽  
Additive Reaction

This paper reviews biological activity of some cinnamic acid derivative compounds which are isolated from natural materials and synthesized from the chemical compounds as an agent of α-glucosidase inhibitors for the antidiabetic drug. Aegeline, anhydroaegeline and aeglinoside B are natural products isolated compounds that have potential as an α-glucosidase inhibitor. Meanwhile, α-glucosidase inhibitor class of derivatives of cinnamic acid synthesized compounds are p-methoxy cinnamic acid and p-methoxyethyl cinnamate. Chemically, cinnamic acid has three main functional groups: first is the substitution of the phenyl group, second is the additive reaction into the α-β unsaturated, and third is the chemical reaction with carboxylic acid functional groups. The synthesis and modification of the structure of cinnamic acid are very influential in inhibitory activity against α-glucosidase.

scholarly journals Design and Effects of the Cinnamic Acids Chemical Structures as Organocatalyst on the Polymerization of Benzoxazines

Polymers ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 1527
Author(s):  
Rocío B. Rodríguez ◽  
Daniela Iguchi ◽  
Rosa Erra-Balsells ◽  
M. Laura Salum ◽  
Pablo Froimowicz
Keyword(s):  
Acid Derivative ◽  
Cinnamic Acid ◽  
Catalytic Effect ◽  
Geometric Isomers ◽  
Cinnamic Acids ◽  
Cinnamic Acid Derivative ◽  
Chemical Structures ◽  
Methoxycinnamic Acid

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 isomers show very good catalytic effect in the polymerization of benzoxazines, decreasing by 40 and 55 °C, respectively, the polymerization temperatures, for catalyst contents of up to 10% w/w. Isothermal polymerizations show that polymerizations are easily realized and analyzed at temperatures as low as 130 °C and at much shorter times using Z-3OMeCA instead of E-3OMeCA. Thus, both cinnamic acids are good catalysts, with Z-3OMeCA being better. The molecular reasons for this difference and mechanistic implications in benzoxazine polymerizations are also presented.

scholarly journals Syntheses, Crystal Structure and Magnetic Properties of Tl9RETe6 (RE = Ce, Sm, Gd)

Crystals ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 277
Author(s):  
Anna Isaeva ◽  
Rico Schönemann ◽  
Thomas Doert
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Rare Earth ◽  
Dft Calculations ◽  
Magnetic Order ◽  
Earth Metal ◽  
Magnetic Data ◽  
Range Magnetic Order ◽  
Long Range Magnetic Order ◽  
Derivatives Of

The three compounds Tl9RETe6 with RE = Ce, Sm, Gd were synthesized from the elements at 1020 K. Their isostructural crystal structures are ordered derivatives of the Tl5Te3 type with rare-earth metal and thallium occupying different Wyckoff positions. The structures can be understood as charge-ordered in accordance with the Zintl-Klemm concept: 9 Tl+ + RE3+ + 6 Te2−. DFT calculations for Tl9GdTe6, however, result in a low, but finite density of states at the Fermi level. Magnetic data confirm trivalent Gd, but indicate a small amount of Ce4+ in Tl9CeTe6; no indications for long-range magnetic order was found down to T = 2 K.

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