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Molecules, Volume 24, Issue 15

August-1 2019 - 180 articles

Cover Story: A new G-(H2L)-Pd heterogeneous catalyst for the Cu-free Sonogashira cross coupling reaction between iodobenzene and phenylacetylene has been prepared via a supramolecular self-assembly process consisting in the spontaneous adsorption, in water at room temperature, of a macrocyclic H2L ligand on graphene (G) (G + H2L = G-(H2L)), followed by decoration of the macrocycle with Pd2+ ions (G-(H2L) + Pd2+ = G-(H2L)-Pd) under the same mild conditions. G-(H2L)-Pd, shows an excellent conversion (90%) of reactants into diphenylacetylene under mild conditions (50 °C, water, aerobic atmosphere, 14 h). The catalyst proved to be reusable for at least four cycles, although decreasing yields down to 50% were observed. View this paper.
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Articles (180)

  • Article
  • Open Access
37 Citations
6,715 Views
15 Pages

5 August 2019

Background: essential oils are well known for their pharmacological effectiveness as well as their repellent, insecticide, and herbicide activities. The emergence of resistant weeds, due to the overuse of synthetic herbicides, makes it necessary to f...

  • Article
  • Open Access
12 Citations
6,364 Views
15 Pages

Toxicokinetic Study of a Gastroprotective Dose of Capsaicin by HPLC-FLD Method

  • Mónika Kuzma,
  • Krisztina Fodor,
  • Attila Almási,
  • Gyula Mózsik,
  • Tibor Past and
  • Pál Perjési

5 August 2019

Background: A low dose of capsaicin and its natural homologs and analogs (capsaicinoids) have shown to prevent development of gastric mucosal damage of alcohol and non-steroid anti-inflammatory drugs. Based on this experimental observation, a drug de...

  • Feature Paper
  • Article
  • Open Access
5 Citations
4,496 Views
14 Pages

4 August 2019

The development of selective butyrylcholinesterase (BChE) inhibitors may improve the treatment of Alzheimer’s disease by increasing lower synaptic levels of the neurotransmitter acetylcholine, which is hydrolysed by acetylcholinesterase, as wel...

  • Article
  • Open Access
9 Citations
6,588 Views
9 Pages

4 August 2019

The nuclear factor (NF)-κB family of transcriptional factors plays a critical role in inflammation, immunoregulation, cell differentiation, and tumorigenesis. This study aims to investigate the role of methylation of genes encoding for the NF-&...

  • Article
  • Open Access
9 Citations
5,335 Views
17 Pages

4 August 2019

A concise and efficient approach to synthesizing coumarin-fused pyrazolo[3,4-b]pyridine via silica sulfuric acid (SSA) catalyzed three-component domino reaction under microwave irradiation has been demonstrated. Participation of various alcohols in c...

  • Article
  • Open Access
4 Citations
4,612 Views
11 Pages

3 August 2019

A chiral derivatizing agent (CDA) with the aldehyde function has been widely used in discriminating chiral amines because of the easy formation of imines under mild conditions. There is a preference for the use of cyclic aldehydes as a CDA since thei...

  • Article
  • Open Access
71 Citations
6,543 Views
14 Pages

3 August 2019

Dihydromyricetin (DMY) has recently attracted increased interest due to its considerable health-promoting activities but there are few reports on its antibacterial activity and mechanism. In this paper, the activity and mechanisms of DMY from Ampelop...

  • Article
  • Open Access
11 Citations
5,777 Views
13 Pages

MMI-0100 Ameliorates Dextran Sulfate Sodium-Induced Colitis in Mice through Targeting MK2 Pathway

  • Zhe Wang,
  • Xue Ya Liang,
  • Xin Chang,
  • Yao Yan Nie,
  • Chen Guo,
  • Jin Hong Jiang and
  • Min Chang

3 August 2019

Backgrounds: This study aimed to investigate the protective effects of MMI-0100, a cell-penetrating peptide inhibitor of MAPK-activated protein kinase II (MK2), on acute colitis induced by dextran sodium sulfate (DSS). Mice were injected intraperiton...

  • Article
  • Open Access
17 Citations
6,122 Views
10 Pages

2 August 2019

Self-assembly of organic molecules in aqueous solutions is governed by a delicate entropy/enthalpy balance. Even small changes in their intermolecular interactions can cause critical changes in the structure of the aggregates and their spectral prope...

  • Article
  • Open Access
47 Citations
6,134 Views
16 Pages

Extraction Optimization, Structural Characterization, and Antioxidant Activities of Polysaccharides from Cassia Seed (Cassia obtusifolia)

  • Ding-Tao Wu,
  • Wen Liu,
  • Qiao-Hong Han,
  • Ping Wang,
  • Xian-Rong Xiang,
  • Ye Ding,
  • Li Zhao,
  • Qing Zhang,
  • Su-Qing Li and
  • Wen Qin

2 August 2019

In order to explore Cassia seed polysaccharides (CSPs) as natural antioxidants for application in the functional-food industry, microwave-assisted extraction (MAE) was optimized for the extraction of CSPs by using a response surface methodology. Furt...

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Molecules - ISSN 1420-3049