A series of benzyldimethylsulfonium - and related hydrogensulfate salts have been synthesized from the ternary system ArCH2OH:H2SO4: Me2S or tetrahydrothiophene. The salts are generally stable crystalline solids, but anomalously high reactivity is observed for 9-(anthrylmethyl)dimethylsulfonium ...

Group 4 metal complexes bearing new phenoxy(benzimidazolyl)-imine, -amine and -amide ligands have been synthesized. A series of metal chloride derivatives has been prepared via treatment of MCl4(THF)2 (M = Ti, Zr, Hf) with the in situ generated sodium salt of the (benzimidazolyl)imine phenol 1. ...

The photophysical properties of 2-phenylbenzothiazole and 2-phenylbenzoxazole were compared. At room temperature 2-phenylbenzothiazole in n-heptane exhibits a broad, structureless absorption and a low fluorescence yield of ≈0.005 (τf

The excited-state intramolecular proton transfer (ESIPT) reactions of 2-(2′-hydroxyphenyl)benzimidazole (HBI) derivatives were investigated using time-dependent density functional theory (TD-DFT) method at B3LYP/TZVP theoretical level. The geometric parameters, infrared (IR) vibrational spectra...

β-Lactams are crucial structural feature of β-lactam antibiotics and important intermediates in synthetic and pharmaceutical chemistry. Synthetic methods for β-lactams with π electron-withdrawing substituents, such as formyl (carbaldehyde), acyl, imino, carboxylic acids, carboxylates, carbox...

Propylene is an important constituent of many products that we rely upon in our daily life. This essential raw material is currently produced from fossil-derived feedstocks such as oil and natural gas. However, conversion of bioethanol to propylene represents an interesting opportunity for the u...

In present investigation, reduced graphene oxide sandwiched organoclay ([email protected]) was introduced as conductive nanofillers to promote the electroactive β-phase as well as conducting network within polyvinylidene fluoride (PVDF) via solution casting technique. The composition of [email ...

A novel material that obtained through combining a biodegradable polymer with a conductive polymer, has been successfully developed by graphene oxide (GO). For the first time, unsaturated poly(butylene fumarate) grafted reduced GO (PBF:RGO) was synthesized via in-situ polymerization method and s...

A polytetrafluoroethylene (PTFE) membrane was used in membrane-assisted extractive (MAE) fermentation of acetone–butanol–ethanol (ABE) by Clostridium saccharoperbutylacetonicum N1-4. The growth inhibition effects of 1-dodecanol, which has a high partition coefficient for butanol, can be preven...

The phase structures and transition behaviors of a novel liquid crystal compound containing biphenylyl mesogen, 5-{[(4′-heptoxy-4-biphenylyl) oxy]carbonyl}-1-pentyne (A3E′O7), have been investigated by differential scanning calorimetry (DSC), polarizing optical microscopy (POM) and wide angle ...

The electrolytic reduction of 1-fluoro-2-(4-biphenylyl)vinyl phenyl sulphoxide (1) in nonaqueous media involves desulphinylation, defluorination followed by reduction of the sulphinyl group, and reduction to the corresponding sulphide, resulting in the formation of 1-fluoro-2-(4-biphenylyl)ethyl...

The syntheses of some 2-(4-biphenylyl)ethylamines are described. The results of preliminary pharmacological tests are reported.

Langmuir and Langmuir–Blodgett (LB) films of non-amphiphilic 2-(4-Biphenylyl)-5-phenyl-1,3,4-oxadiazole (abbreviated as PBD) mixed with stearic acid (SA) as well as with the inert polymer matrix poly(methyl methacrylate) (PMMA) have been studied. Surface pressure versus area per molecule (π–A...

Assembly of [{Zn2(μ-OAc)4(1)}n] from reaction of zinc(II) acetate and 4′-(4-biphenylyl)-4,2′:6′,4″-terpyridine (1) using 1:1, 2:1 and 1:2 ratios of Zn(II): 1 is independent of the conditions tested. Free ligand 1 is a rare example of a compound that crystallizes with five independent molecu...

Enantioselective hydrogenation of methyl 4-(4-biphenylyl)-3-oxobutanoate over a tartaric acid-modified Raney nickel catalyst gave the title compound in 82% ee, which was enantiomerically enriched by recrystallizations. The product was converted to an (R)-3-acetoxyglutaric acid half ester via a r...

We have investigated the emission properties in 2,5-bis(4-biphenylyl)thiophene (BP1T) crystals, which show high emission yields and efficient excitation energy propagation, using nonlinear emissions such as spectrally narrowed emissions (SNE) and stimulated resonance Raman scattering (SRRS). The...

A series of 2-(4-biphenylyl)-3,3′-hydroxy-substituted phenyl propionic acid, with anti-inflammatory properties, bearing two chiral centres, were studied by HPLC upon HSA-CSP (human serum albumin-based chiral stationary phase). The compounds were analysed in their stereoisomeric erythro and thre...

The impact of driving voltage on the electroluminescence (EL) from organic light emitting diode with ITO/PVK:PBD:TBAPF6(10:10:1)/Al structure was analyzed by the method of Gaussian fitting. Indium tin oxide (ITO) was used as anode, poly(9-vinylcarbazole) (PVK) as polymeric host, 2-(4-biphenylyl)...

The hydrogen bonding and amino–imino tautomerization of the systems of 2-amino-3-methoxypyridine (2A3MOP), 2-amino-6-methoxypyridine (2A6MOP), 2-amino-6-n-propoxypyridine (2A6NPOP), 2-amino-6-iso-propoxypyridine(2A6IPOP), 2-amino-4-methoxypyrimidine (2A4MOPM), 4-amino-2-methoxypyrimidine (4A2OP...

The kinetics of the reactions of phenyl 2,4,6-trinitrophenyl ether with piperidine and cyclohexylamine respectively were studied at different amine concentrations in benzene. The reaction of cyclohexylamine was not base-catalysed while that of piperidine was catalysed by one molecule of the nucl...