A new column-switching method has been proposed for the determination of 14 organic explosives (1,3,5,7-tetranitro-N-methylaniline, 1,3,5-trinitro-1,3,5-triazacyclohexane, 1,3,5-trinitrobenzene, 1,3-dinitrobenzene, nitrobenzene, 2,4,6-N-tetranitro-N-methylaniline, Trinitrotoluene, 4-amino-2,6-dinitrotoluene, 2-amino-4,6-dinitrotoluene, 2,6-dinitrotoluene, 2,4-dinitrotoluene, 2-nitrotoluene, 4-n...

A simple and convenient method was developed for the preparation of hindered tertiary amines via direct reductive amination of ketones with secondary aryl amines, using trichlorosilane as reducing agent and tetramethylethylenediamine (TMEDA) as organic Lewis base activator. A broad range of ketones were reacted with N-methylaniline to afford the corresponding tertiary amine products in high yie...

Under mechanical milling conditions, direct reductive benzylizations of malononitrile and 4-methylaniline by aromatic aldehydes were achieved using a Hantzsch 1,4-dihydropyridine as the reductant.

The reaction of nitrite ion with ascorbic acid and its effect on the rate of nitrosation of secondary amines have been investigated by differential pulse polarography in aqueous acidic solution. Ascorbic acid shows nonuniform behavior: it accelerates the nitrosation of N-methylaniline between pH 1.00 and 1.95, allows the nitrosation of diphenylamine and iminodiacetonitrile, but inhibits the nit...

The poly(epoxy-N-methylaniline) conductive organic carrier was used as the bonding phase of low-temperature silver paste. Then, this mixed with different proportions powder to prepare lowtemperature Afterwards, effect on properties paste determined by IR, DMA and SEM. results revealed that prepared has good conductivity, film-forming performance, printing curing anti-aging performance. When mas...

5 % respectively of the total (whole homogenate) activity; the postmitochondrial (1OOOOg) supernatant contained the whole of the activity. Further, on resuspending the microsomal fraction in the cell sap, all the dimethylnitrosamine demethylase activity was restored. The kinetics of dimethylnitrosamine demethylase were investigated in hepatic 1OOOOg supernatants over a substrate concentration r...