Depression: An insight into Heterocyclic and Cyclic Hydrocarbon Compounds inspired from Natural Sources

: Depression, a well know mental disorder has global prevalence, nearly affecting 17% of population. Due to various limitations of the currently available drugs, people have been adopting traditional herbal medicines to alleviate the symptoms of depression. It is notable to mention that natural products, their derivatives, and their analogs are the main source for new drug candidates in depression. The mechanisms include interplay with γ-aminobutyric acid (GABA) receptors, serotonergic, dopaminergic noradrenergic systems, and elevation of BDNF levels. The focus of this review is to revisit the role of signalling molecules in depression and highlight the use of plant-derived natural compounds to counter depression in the CNS.

Direct synthesis of a high-density aviation fuel using a polycarbonate

A high-density cyclic hydrocarbon mixture was first synthesized by a one-pot transfer hydrodeoxygenation of a polycarbonate.

Anharmonic kinetics of the cyclopentane reaction with hydroxyl radical

Quadratic–quartic bend anharmonicity and torsional anharmonicities play important roles in the kinetics of a cyclic hydrocarbon.

Solvent dependent pathway complexity and seeded supramolecular polymerization

cNDI-1 exhibits an off-pathway aggregate in cyclic hydrocarbon (MCH) but produces a helical supramolecular polymer in linear alkane (decane) by well-defined J-aggregation.

AU(III) AND CU(II) CATALYST FOR OXIDATION OF AROMATIC AND CYCLIC HYDROCARBON BY CERIUM (IV) IN ACIDIC MEDIUM UNDER MICROWAVE IRRADIATION

The addition of traces of Au(III) chloride with Ce(IV) sulphate (catalyst: substrate ratio (1: 80 to 1: 300)) and in case of Cu(II) sulphate with Ce(IV) sulphate(catalyst: substrate ratio (1: 60 to 1: 250)) in solution phase under microwave irradiation resulted in good to excellent yields of corresponding to phenol, quinone and carbonyl compounds. In case of oxidation of anthracene, phenanthrene, naphthalene, cyclohexane and toluene dissolved in acetic acid to give 95.02 %, 85.25%, 34.68%, 40.94%, and 56.54% yields in case of gold catalyst and 93.5%, 83.4%, 24.68%, 38.25% and 47.11% yields in case of copper as a catalyst. Phenanthrene was oxidized in 9-Fluorenone instead of phenanthraquinone to get the benzylic rearrangement.

Engineering cyanobacteria for the production of a cyclic hydrocarbon fuel from CO2and H2O

Engineering the filamentous, N2-fixing cyanobacteria as a cellular factory to produce and secrete a cyclic hydrocarbon fuel using atmospheric gases (CO2and N2), water, and sunlight.

Identifikasi Komponen Kimia Damar Mata Kucing (Shorea Javanica) dengan Metode Pirolisis-GC/MS

The aim of this research was to identify chemical compounds in cat eye dammar. The method included functional groups characterizationby infrared spectrophotometer and identification using Pyrolisis-GC/MS. Infrared spectra of crude sample showed that there were somefunctional groups such as alkyl, carbonyl, vinyl, and hydroxyl. Identification by Pyrolisis-GC/MS showed that dammar consisted of at least67 compounds. This natural gum components could be categorized into 4 groups, i.e. tetra cyclic hydrocarbon (30 compounds, 49.57%),penta cyclic (3 compounds, 2.56%), C 15 compounds (11 compounds, 17.09%), and other group (23 compounds, 18.26%). According to thePy-GC/MS data, brassicasterol is the highest relative concentration in dammar, i.e. 20%.