The detection and filtration of melamine in food products has become an emergence due to its harmful effect on humans. In present work, we have investigated the binding mechanism of melamine over carboxyl group edge-functionalized graphene quantum dots doped with oxygen and sulphur atoms (O-GQD ...

A flexible battery is printed on paper by screen-printing a zinc/carbon/polymer composite anode on one side of the sheet, polymerising a poly(3,4-ethylenedioxythiophene) (PEDOT) cathode on the other side of the sheet, and applying a lithium chloride electrolyte between the two electrodes. The PE...

A convenient and efficient method for the synthesis of synthetically useful non-racemic allylic alcohols from 4-methylbenzenesulfonates of non-racemic 2,3-epoxy alcohols is described. Satisfactory yields are obtained by treatment of 4-methylbenzenesulfonates of non-racemic 2,3-epoxy alcohols wit...

Reactions between 4′-phenyl-terpyridine (L) and several Zn(II) salts (p-toluenesulfonate, nitrate, trifluoromethane sulfonate or hexafluoroantimonate) led to the formation of the complexes [ZnL2](p-OSO2PhCH3)2 (1), [ZnL2](NO3)2 (2), [ZnL2](SO3CF3)2 (3) and [ZnL2](SbF6)2 (4), which were characte...

The use of zinc oxide-promoted catalysis of tetrakis(pentafluorophenyl)porphyrin iron chloride for cyclohexane oxidation was studied. Tetrakis(pentafluorophenyl)porphyrin iron chloride was immobilized onto zinc oxide, generating zinc oxide-supported tetrakis(pentafluorophenyl)porphyrin iron chlo...

Copolymerization reactions involving oligoethylene glycol acrylate (OEGA) or diethylene glycol acrylate (DEGA) with pentafluorophenyl acrylate (PFPA) have been performed by reversible addition fragmentation transfer (RAFT) polymerization. The effect of the reaction conditions on the nucleophilic...

With ongoing and expending global energy needs, nuclear power is likely to be a key energy source for many more generations. A key question is still the fate of spent nuclear fuel (SNF). SNF contains a great deal of valuable material. In order to improve safety and handling, herein is proposed r...

The pentafluorophenyl (PFP) moiety is an important and versatile substituent in the chemistry of BODIPYs, porphyrins and corroles. The widespread use of PFP meso-substituted compounds, as intermediates in the synthesis of more complex pyrrole derivatives, is the motivation behind this work, whic...

In this study, the effect of surface functionalization on the electrochemical corrosion resistance of a high surface area, mesoporous colloid imprinted carbon powder (CIC), as well as microporous Vulcan carbon (VC, serving as the benchmark), was demonstrated, primarily for PEM fuel cell applicat...

A series of ionic and neutral alcohol soluble Cu(I) complexes were obtained by reaction of 2-(pentafluorophenyl)-1H-imidazo[4,5-f][1,10]-phenanthroline (ppipH), [Cu(MeCN)4]ClO4 and the chelating diphosphine ligands bis[(2-diphenylphosphino)phenyl]ether (POP), 4,6-bis(diphenylphosphino)phenoxazin...

Vinylation of methyl α-d-glucopyranoside (1) gives a mixture of products that usually contains all of the monovinyl ethers. Reaction conditions that favor increased conversion cause an increase in the proportion of divinyl ethers. Methyl 3-O-vinyl-α-d-glucopyranoside (3) was found to be isolab...

Reaction of methyl 2,3-anhydro-5-O-trityl-β-d-ribofuranoside (4) with methyl-magnesium chloride gave a mixture of methyl 3-chloro-3-deoxy-5-O-trityl-β-d-xylofuranoside (5) and methyl 3-deoxy-3-C-methyl-5-O-trityl-α-d-xylofuranoside (6). Removal of the trityl group from 6 gave methyl 3-deoxy-3...

5-Hydroxypent-2-enenitriles were found to be precursors toward several classes of compounds with synthetic and biological interests. To be specific, upon treatment with sulfuric acid in dichloromethane and depending on the configuration of the C–C double bond and the nature of substituents atta...

The recent years have seen a reemergence of organophosphorus molecules as drugs or drug candidates, and a significant number of them have reached the market. If organophosphorus particularly shines in the cancer area and for the treatment of viral infections, the biological applications were sub...

We reported previously the synthesis and structure–activity relationships (SAR) in a series of 2-(1H)-oxoquinolines bearing different acidic functions in the 3-position. Exploiting these SAR, we were able to identify 6,7-dichloro-2-(1H)-oxoquinoline-3-phosphonic acid compound 3 (S 17625) as a p...

Phosphonic acid analogues of acylcarnitine were prepared in an optically active form expecting CPT I inhibitory activities. The synthetic methodology was based on catalytic asymmetric dihydroxylation of β,γ-unsaturated phosphonates and subsequent regioselective amination via the cyclic sulfates.

1,3-Bis(trifluoromethyl)benzene was regioselectively metalated and subsequently carboxylated at position 2 to give 2,6-bis(trifluoromethyl)benzoic acid. Treatment of the acid with sulphur tetrafluoride gave 2,6-bis(trifluoromethyl)benzoyl fluoride which was readily converted to 2,6-bis(trifluoro...

The unique selective estrogen receptor modulator, Raloxifene (1), and antitubulin agent 2 were synthesized through the key intermediate, 4-methoxybenzyl 2-bromo-4-methoxyphenyl sulfoxide (6), respectively. It was found that compared with the o-sulfanyl aryl bromides, the sulfinyl group at ortho ...

MYB transcription factors (TFs) have vital roles in regulating lignin or fiber development. Flax (Linum usitatissimum) is known as one of the plants with high fiber production capacity. However, no studies have been conducted to identify and characterize MYB TFs in the flax genome. Results showe...

T. A. Dowling introduced Whitney numbers of the first and second kinds concerning the so-called Dowling lattices of finite groups. It turned out that they are generalizations of Stirling numbers. Later, I. Mező defined r-Whitney numbers as common generalizations of Whitney numbers and r-Stirling...