The functionalization of C?H bonds in light alkanes, particularly to form C?N bonds, remains a challenge. We report the dehydrogenative coupling amides with C1–C4 hydrocarbons N-alkyl amide products tBuOOtBu as oxidant, and copper complex phenanthroline-type ligand catalyst. reactions occurred good yields benzene or supercritical carbon dioxide solvents. This strategy allowed for determination ...

Objectives—To evaluate the contribution of traYc fumes to exposure to benzene in urban workers, an investigation on personal exposure to benzene in traYc police from the city of Rome was carried out. Methods—The study was performed from December 1998 to June 1999. DiVusive Radiello personal samplers were used to measure external exposures to benzene and alkyl benzenes during the workshift in 13...

OBJECTIVES To evaluate the contribution of traffic fumes to exposure to benzene in urban workers, an investigation on personal exposure to benzene in traffic police from the city of Rome was carried out. METHODS The study was performed from December 1998 to June 1999. Diffusive Radiello personal samplers were used to measure external exposures to benzene and alkyl benzenes during the workshif...

Abstract The proton light yield of liquid scintillators is an important property in the context their use large-scale neutrino experiments, with direct implications for neutrino-proton scattering measurements and discrimination fast neutrons from inverse $$\beta $$ β -decay coincidence signals. This work pres...

The synthesis of C3 - and C2 -symmetric benzene-1,3,5-tricarboxamides (BTAs) containing well-defined oligodimethylsiloxane (oDMS) and/or alkyl side chains has been carried out. The influence of the bulkiness of the oDMS chains in the aggregation behavior of dilute solutions of the oDMS-BTAs in methylcyclohexane was studied by temperature-dependent UV spectroscopy. The formation of hierarchicall...

The synthesis of the ZSM-5 and beta zeolites in their nanosized form has been achieved by using simple alkyl-substituted mono-cationic cyclic ammonium cations as OSDA molecules. The particular combination of a cyclic fragment and a short linear alkyl-chain group (preferentially C4) within the monocationic OSDA molecules allows directing the crystallization of nanosized zeolites with excellent s...

The title compound, C21H12Br2F13NO·2CH3OH, was obtained by condensation of 4-methyl-1-(1H,1H,2H,2H-perfluoro-oct-yl)pyridinium iodide and 3,5-di-bromo-4-hy-droxy-benzaldehyde, followed by deprotonation. It crystallizes as a methanol disolvate and exhibits short O-H⋯O hydrogen bonds and a disordered perfluoro-alkyl chain [occupancy ratio 0.538 (7):0.462 (7)]. Significant π-π stacking inter-actio...

Surfactants are among the main chemical contaminants in greywater (GW) and can cause severe health issues humans aquatic organisms. We assessed performance of a multistage constructed wetland system (EvaTAC) for GW treatment capacity microbial community linear alkyl benzene sulfonate (LAS) biodegradation. Physicochemical analyses were performed over 497 d, biomass samples collected high-through...

A general empirical relationship has been developed for estimating the cloud point of pure nonionic surfactants of the alkyl ethoxylate class. For a set of 62 structures, composed of linear alkyl, branched alkyl, cyclic alkyl, and alkylphenyl ethoxylates, cloud points can be estimated to an accuracy of ±6.3°C (3.7°C median error) using the logarithm of the number of ethylene oxid...