Nelson Mandela University, Summerstrand Campus, Department of Chemistry, University Way, Summerstrand, PO Box 77000, Port Elizabeth, 6031, South Africa.
Published: November 2024
AI Article Synopsis
Article Abstract
The title compound, CHClOP, is the symmetric phosphate derived from -chloro-phenol and phospho-ric acid. Two of the three aromatic moieties adopt -orientation towards the P=O bond while the last chloro-phenol ring is pointing away from this bond. In the extended structure, C-H⋯O bonds connect the individual mol-ecules into sheets lying perpendicular to the crystallographic axis.
Background And Objectives: Mitochondrial encephalomyopathy with lactic acidosis and stroke-like episodes (MELAS) syndrome is a maternally inherited mitochondrial disorder that mostly affects the central nervous system and skeletal muscle. This study provides a comprehensive summary of the clinical symptoms, multisystemic pathogenesis, and genetic characteristics of MELAS syndrome. The aim was to improve comprehension of clinical practice and gain a deeper understanding of the latest pathophysiological theories.
Dept. of Gerontology (AgeTech-Service Convergence Major), Graduate School of East-West Medical Science, Kyung Hee University, Yongin, Republic of Korea. Electronic address:
Triazolium α-cyclodextrin click cluster-magnetic agarose bead conjugate (CCC-MAB) was used to enrich phosphatidylinositol bisphosphates in brain tissue. The enriched sample was phosphate-methylated and analyzed by MALDI-TOF-MS/MS in positive ion mode. CCC-MAB effectively removed weak-binding interferences from the phosphoinositide extract and improved the signal-to-noise ratio.
This study investigated the speciation and aqueous dissolution of macronutrients in fire ash from diverse ecosystems and speciation of ash and smoke from laboratory burning, exploring the variations and their causes. The speciation of phosphorus (P), calcium (Ca), and potassium (K) in fire ash from five globally distributed ecosystems was characterized by using X-ray absorption spectroscopy and sequential fractionation. Aqueous dissolution of the macronutrients was measured by batch experiments at acidic and alkaline pHs.
As a novel organophosphate ester (NOPE), tris(2,4-di-butylphenyl) phosphate (TDtBPP) has attracted significant attention due to its unexpectedly high detection in natural environments. However, the ecological toxic effects of environmentally relevant concentrations of TDtBPP in organisms remain entirely unknown. In this study, 1 month old zebrafish were exposed to 0, 50, 500, or 5000 ng/L TDtBPP for 150 days, and the reproductive toxicity in male fish was evaluated.
The synthetic utility of tetrabenzyl pyrophosphate for achieving chemoselective phosphorylation of phenols, as well as primary, secondary, and tertiary alcohols, is reported here. Additionally, we introduce a rapid, mild, and chemoselective debenzylation procedure, enabling access to phosphates in the presence of redox sensitive groups. Finally, stoichiometrically controlled monodebenzylation provides a versatile platform for late-stage divergent synthesis of phosphodiester and phosphoramidate chemical libraries.
