Lanthanide ions have attracted intense research interest for their luminescence properties, which make them interesting for applications such as bioactive probes for magnetic resonance and luminescence. We present here our study related to the interaction between DNA–CTMA (hexadecyltrimethylamm...

Chemical treatment of carbon steel (CS) specimens was done by an eco-friendly Ce (III)-Pr(III) composite nanofilm. The impact of composite film deposition on CS on the epoxy coating (EP) capability for reduction of CS corrosion and delamination rates was examined. The Ce (III)-Pr (III) thin film...

Indirect photo-induced phosphorylation of hydroxylic solvents via UV photolysis of a C-o-nitrobenzyl ester (E-9: anilinium salt) of (E)-(hydroxyimino)(dihydroxyphosphinyl)acetic acid (E-1, ‘troika acid’) is demonstrated. Comparable phosphorylation (MeOH) was observed for the dicyclohexylammoni...

A convenient method for the preparation of enantiomerically pure P-chiral dicyclohexylammonium 2-(phosphinyl)acrylates 6 and 7 is presented. The synthesis of α-methylene-δ-valerolactone 5a with enantiomeric excesses of 85% and 80% has been developed. The key step of the synthesis involves an a...

The reaction of different chloromethyl ethers 1 with an excess of lithium powder and a catalytic amount of 4,4′-di-tert-butylbiphenyl (2.5 mol %) in THF at 0 °C leads to the corresponding α-lithiomethyl ether intermediates, through a chlorine–lithium exchange, which spontaneously undergo a c...

An efficient and practical method for construction of 2-arylbenzo[b]furans from 2-methoxychalcone epoxides has been reported. Catalyzed by 2 mol % of BF3·Et2O, 2-methoxychalcone epoxides went through the Meerwein rearrangement, followed by deformylation in one-pot to successfully afforded 2-met...

An unprecedented PTSA-promoted furan annulation and aromatization in one pot has been developed. This process offers a simple and efficient synthetic route for the construction of various highly substituted benzo[b]furan derivatives, which are widely used not only in drug active molecules but al...

A new facile preparation of furan-2(3H)-ones and 2,3,5-trisubstituted furans by a sequential O-acylation/Wittig(/O-acylation) reaction has been developed. The easily accessible 2-(triphenylphosphoranylidene)-succinic acid 1-ester 3 reacted with acid chloride produced furan-2(3H)-ones 4 in good y...

The title compound 1 undergoes thermal [π2S+π2S] cycloaddition reactions with 1,1-dimethoxyethylene or enamines to produce 1,2-bismethylenecyclobutanes of type 3.

This paper describes a novel synthetic route for the preparation of ortho–ortho disubstituted biphenyls and compounds possessing highly condensed ring system represented by structures X and Y, respectively. Several approaches, such as intermolecular Grubb's olefin metathesis, Heck and, Suz...

The synthesis and characterization of new liquid crystal (LC) compounds based on 4-[(4-butyl-2,6-difluorophenyl)ethynyl]biphenyl core are described. New family of dielectrically positive compounds presents alternative molecular approach to the conventional LC design. Correlations between molecul...

VEGFR-2 plays an essential role in angiogenesis and is an important target for cancer therapy. A series of biphenyl-aryl ureas were synthesized and evaluated as novel VEGFR-2 inhibitors. The pyridine, methylamine carbonyl pyridine and pivaloyl amide pyridine were introduced as novel hinge bindin...

A carbon-11 labeled methoxyl analog of CP-101,606, (±)threo-1-(4-hydroxyphenyl)-2-[4-hydroxy-4-(p-[11C]methoxyphenyl)piperidino]-1-propanol [(±)[11C]1], was synthesized as a new subtype-selective PET radioligand for NMDA receptors. The in vitro binding studies using rat brain slices demonstrat...

The Pb isotope compositions of galena in hydrothermal deposits obtained by drillings from two hydrothermal fields in the middle Okinawa Trough were studied. One of the study fields was the Iheya North field located on a volcanic complex and the other was the Izena field located in the sediment-f...

Boron and Li are light, incompatible elements that preferentially partition into the liquid phase, whether melt or aqueous fluid, and thus are useful for tracking fluid-related processes in rocks. Most of the Li isotopic data presently available on subduction-related rocks are from whole-rock an...

In this work, for the first time, we have used Primula vulgaris flower extract (PVFE) as a green corrosion inhibitor for mild steel (MS) exposed to 1 M HCl environment. The surface and electrochemical characterizations were carried out using Fourier transform infrared spectroscopy (FT-IR), Ultra...

Although the cycling of chromium (Cr) in the ocean may have direct implications on the Cr isotope system's application as a paleo-redox proxy, little seawater Cr isotope data has been published. This may be partly due to the analytical challenges associated with the preconcentration and the...

A highly sensitive, specific and simple colorimetric sensor based on aptamer was established for the detection of polychlorinated biphenyls (PCB 77). The use of unmodified gold nanoparticles as a colorimetric probe for aptamer sensors enabled the highly sensitive and selective detection of polyc...

The Social Attribution Task-Multiple Choice (SAT-MC) tests the ability to extract social themes from viewed object motion. This form of animacy perception is thought to aid the development of social inference, but appears impaired in schizophrenia. The current study was undertaken to examine psy...

The isotopic compositions of Se in natural materials can be measured by multiple collector inductively coupled plasma mass spectrometry (MC-ICP-MS) in combination with hydride generation and desolvation device. Although oceans are important targets for research, precise isotopic analysis of Se i...