Chromatographic and spectroscopic characteristics were determined for the following stearic acid derivatives: cis- and trans-9,10-epoxystearic acids and their methyl esters, and erythro- and threo-9,10-dihydroxystearic acids and their methyl esters. It will be helpful in the further identificati...

Preparation and properties of four triesters—derivatives of 9,10-dihydroxystearic acid after the epoxidation of methyl ester of the oleic acid, opening of the formed oxirane ring in suitable medium and esterification of free hydroxyl group is discussed in the paper. Removal of the double bond f...

Previous studies have indicated that long-chain linear carboxylic acids form commensurate packed crystalline monolayers on graphite even at temperatures above their melting point. This study examines the effect on the monolayer formation and structure of adding one or more secondary hydroxyl, fu...

A novel co-fluorinated fatty acid has been isolated from seeds of Dichapetalum toxicarium and identified as threo-18-fluoro-9,10-dihydroxystearic acid (1).

Erosion, rates of poly(ortho esters) can be usefully accelerated by the copolymerization of 9,10-dihydroxystearic acid into the copolymer. This accelerating effect can be enhanced by using a hydrophilic diol such as triethylene glycol as one of the monomers. By using a combination of 9,10-dihydr...

A microsomal fraction from etiolated Vicia sativa seedlings incubated aerobically with [1-14C]oleic acid (Z9-octadecenoic acid) or [1-14C]9,10-epoxystearic acid or [1-14C]9,10-dihydroxystearic acid catalyzed the NADPH-dependent formation of hydroxylated metabolites. The chemical structure of com...

Dihydroxystearic acid (DHSA) and its derivatives are hydroxyl fatty acids suitable to be used as multipurpose intermediates in the synthesis of personal care products and decorative cosmetics. In Malaysia, DHSA has been successfully produced from palm-based oleic acid, via epoxidation with per-f...

Several efficient synthetic routes giving readily access to (oxy)-sitosterol esters and (oxy)-cholesterol esters derived respectively from oleic acid and from 9,10-dihydroxystearic acid were developed for the first time. This approach allowed that sufficient amounts of the latter were available ...

Silver(I) forms with N,N'-bis(2-hydroxyethyl)dithio-oxamide (HEDTO) water-soluble complexes in acidic medium. The composition of these complexes may be represented by the following formula: B(AB)n in which B is the ligand and A the metal ion. There is some indication that complexes with gen...

Silver(I) and N,N'-bis(2-hydroxyethyl)dithiooxamide (H2X) in acidic solutions, form a series of water-soluble polynuclear complexes. These complexes can be represented by two general formulae: H2qAgpXq and H2q-1AgpXq with q=1,2,3 and p=q, q-1.

The magnetic properties of copper coordination polymers with dithiooxamide [H2dtoaCu] and its substituent N,N′-bis-(hydroxyethyl)dithiooxamide [(HOC2H4)2dtoaCu] have been investigated. They indicate different temperature dependence, which was analyzed by Bleaney–Bowers equation. The estimated ...

Phenol red (PR) is the standard pH indicator in various cell and tissue culture media, as it provides a quick check for the health of the culture. PR has also been used in multiple protocols to detect cellular hydrogen peroxide as well as peroxidase activity from human peroxidase enzymes. The ma...

Compounds comprising a diaryl ether skeleton exist among natural phenols. The diaryl ether skeleton is thought to be biosynthesized through the coupling of two or more phenols. It is an important structural feature in medicines and agrochemicals, and it is imperative to develop methods for const...

A racemic mixture of (R/S)-pipecolic acid (piperidine-2-carboxylic acid, P2C) forms a stable crystalline aggregate with 2,6-dichloro-4-nitrophenol (DCNP) at the unusual 2:3 ratio (1). Complex 1 has been characterized by X-ray analysis, Raman, FTIR and NMR spectra, and its structure (2) has been ...

2-(Quinuclidinium)-alkanocarboxylates co-crystallize with 2,6-dichloro-4-nitrophenol at the ratios 1:1 and 1:2 depending on the alkyl-chain lengths. The obtained complexes have been characterized by single-crystal X-ray diffraction, UV–vis, FTIR and NMR spectroscopy. The compounds 2-(quinuclidi...

A novel and efficient metal-free synthesis of phenolic compounds was developed via coupling cyclization of DMF as a carbon source with active methylene compounds such as 1,3-dicarbonyl compounds with the assistance of 1,1-dichloro-2-nitroethene. The method we used was different from other tradit...

The water contamination by 2,4-dichlorophenol (2,4-DCP) is a tough environmental problem, so its removal has aroused much attention recently. In this study, the synthesis of a β-cyclodextrin-based submicron polymeric particles (CSPs) is described along with its utilization as adsorbent for the ...

Nowadays, the remediation of heavy metals and organic compounds contaminated soil has been greatly growing attentions. In this paper, the feasibility of a novel biochar-supported zero valent iron (B-nZVI) based system for the degradation of 2,4-Dichlorophenol (2,4-DCP) and immobilization of Cd(I...

In this work, a sensitive and selective electrochemical sensor based on polydopamine-reduced graphene oxide (PDA-rGO) and molecular imprinted polymers (MIP) modified glassy carbon electrode for detection of 2,4-DCP was fabricated. The PDA-rGO was obtained through the auto polymerization of dopam...

This study presents the magnetically separable TiO2/FeOx microstructure decorated with poly-oxo-tungstate (POM) leading to the endocrine disruptor 2,4-dichlorophenol (2,4-DCP) under low intensity solar light. The fastest 2,4-DCP degradation kinetics was obtained by way of the TiO2/FeOx(25%)/POM(...