Diethyl-2,2′-biquinoline-4,4′-dicarboxylate (debq) reacts with pentacarbonylbromorhenium in toluene to give fac-[Re(CO)3(debq)Br]; subsequent reaction with AgOTf in MeCN affords the cationic complex fac-[Re(CO)3(debq)(MeCN)]OTf. X-ray crystallographic data on fac-[Re(CO)3(debq)Br] show that th...

A series of [Cu(I)(2,2′-biquinoline)(L)](ClO4) complexes (L = bis(diphenylphosphino)methane (bppm), 1,2-bis(diphenylphosphino)ethane (bppe), 1,4-bis(diphenylphosphino)butane (bppb)) have been synthesized and characterized by elemental analysis, conductivity, ESI-mass, NMR and UV–Vis spectrosco...

A novel material showing aggregation induced enhanced emission (AIEE) is developed by reprecipitation method using 2,2′ biquinoline (BQN) in aqueous medium. Morphologies of the particles are characterized using optical and scanning electron microscopic (SEM) study. The selective fluorescence an...

We present a detailed analysis of the structure and infrared spectra of 2,2′-biquinoline. The vibrational frequencies of the 2,2′-biquinoline molecule have been analyzed using standard quantum chemical techniques. Frequencies have been calculated with HF, and DFT (BLYP, B3LYP and B3PW91) theor...

The effect of 3,3'-dimethoxybenzidine (o-dianisidine) on the conversion of cholesterol to pregnenolone was investigated in a reconstituted side chain cleavage system using enzymes purified from bovine adrenal cortex; d-p-aminoglutethimide was also assayed under similar conditions for compar...

A series of bisazobiphenyl dyes derived from benzidine, 3-3′-dimethylbenzidine or 3,3′-dimethoxybenzidine were studied in the dog and rat. The dyes, which are commercially useful in the textile and leather industries, possess potential for metabolism to the carcinogenic aromatic amines, benzid...

The dissociation constants of diprotonated 3,3′-dimethylnaphthidine (DMN) and 3,3′-dimethoxybenzidine (DMB) have been determined spectrophotometrically. They are: pKa1 = 2·62 ± 0·03, pKa2 = 3·33 ± 0·09 for DMN: pKa1 = 2·83 ± 0·07, pKa2 = 4·05 ± 0·12 for DMB. The molar absorptivitie...

Conditions have been found for the indirect coulometric determination of 1–8 mg of benzidine, 3,3′-dimethylbenzidine and 3,3′-dimethoxybenzidine with manganese(III) sulfate.

The anodic oxidation of 3,3′-dimethoxybenzidine and its derivatives were studied by cyclic voltammetry, voltammetry at a rotating platinum electrode, chronopotentiometry and constant potential coulometry. The exhaustive oxidation of 3,3′-dimethoxybenzidine led at the potential of the first oxi...

Studies on the oxidation products of organic pollutants and their toxicity in textile dyeing sludge after the sludge was treated by the advance oxidation processes were limited, since textile dyeing sludge was a complicated mixture. For the first time, simulated sludge was used to study the degr...

Cinnamic acid was effective to control blue mold caused by Penicillium italicum in ‘Orah’ mandarins. The inhibition of fruit decay was positively correlated with cinnamic acid concentration. Cinnamic acid at 1.5 mM, in combination with the biocontrol yeast Cryptococcus laurentii at 1 × 107 ce...

A new paradigm of the oxidative decarboxylative sulfono functionalization of cinnamic acids with sulfinate salts mediated by K2S2O8 under aerobic conditions to afford synthetically and biologically relevant β-keto sulfones has been described. It is the first report on the transition-metal-free ...

This study evaluated the in vitro anthelmintic (AH) activity of cinnamic acid and six analogues against eggs and larvae of Haemonchus contortus. Stock solutions of each compound (trans-cinnamic acid, p-coumaric acid, caffeic acid, trans-ferulic acid, trans-sinapic acid, 3,4-dimethoxycinnamic aci...

We report formation of polymorphs and new eutectics and cocrystals of curcumin, a sparingly water-soluble active component in turmeric, structurally similar to cinnamic acid. The curcumin polymorphs were formed using liquid antisolvent precipitation, where acetone acted as a solvent and water wa...

Nuclear receptors, especially the peroxisome proliferator activated receptors (PPARs) and the farnesoid X receptor (FXR) fulfill crucial roles in metabolic balance. Their activation offers valuable therapeutic potential which has high clinical relevance with the fibrates and glitazones as PPAR a...

Small-molecule fluorescent reporters of disease states are highly sought after, yet they remain elusive. Anthranilic acids are extremely sensitive environmental probes, and hold promise as general but selective agents for cancer-cell detection if they can be equipped with the appropriate targeti...

In this manuscript, we present a simple and reliable method for the quantitation of para-aminohippuric acid (PAH; 2-(4-aminobenzamido)acetic acid) in human plasma and urine using liquid chromatography coupled to electrospray ionisation low-energy collision-induced dissociation tandem mass spectr...

A series of quinazolinone amino acid ester and quinazolinone amino acid hydrazides were prepared under microwave irradiation as well as conventional condition. The microwave irradiation afforded the product in less reaction time, higher yield and purity. The structures of the synthesized compoun...

Nowadays, among synthetic organic chemists, the Ugi four-component reaction (U-4CR), is known as the most important and useful isocyanide-based multicomponent reactions (IMCRs); since it allows the rapid and straightforward synthesis of the linear peptide backbone. U-4CR, actually is the condens...

The use of 2-nitrodiphenylamine as a reversible indicator has been investigated in the titration of iron(II) with cerium(IV) sulphate, potassium dichromate and sodium vanadate in sulphuric acid media. Accurate results can be obtained with cerium(IV) sulphate in 0.5–5.0 M acid, with potassium di...