A practical method for the multigram scale selective cis-dihydroxylation of electron deficient alkenes such as diethyl fumarate and N-alkyl and N-aryl-maleimides using H(2)O(2) is described. High turnovers (>1000) can be achieved with this efficient manganese based catalyst system, prepared in situ from a manganese salt, pyridine-2-carboxylic acid, a ketone and a base, under ambient conditions....

OBJECTIVE To develop criteria to assess injuries due to diethyl sulfate poisoning. METHODS Patients were evaluated with respect to their toxic status and outcomes, in comparison to typical cases. RESULTS Among 44 poisoned patients, 4 patients were classified as major injuries, 4 person as minor injuries, and the rest of 36 patients were classified as not poisoned according to poisoning diag...

Fusarium oxysporum strain BM-201 was treated with ultraviolet (UV) radiation to obtain a high pectinase-producing strain. Mutant UV-10-41 was obtained and then treated by diethyl sulfate. Next, the mutant UV-diethyl sulfate-43 derived from UV-10-41 was selected as high pectinase-producing strain. Mutant UV-diethyl sulfate-43 was incubated on slant for 10 generations, demonstrating that the pect...

Bottle water is getting very popular all through the world; especially in the gulf countries as the main source of drinking water. However, concerns over leaching of toxic chemicals are increasing. In this study, a health risk assessment was conducted in accordance with the guidelines indicated by United States Environmental Protection Agency (USEPA). It is conducted based on leaching of Diethy...

Abstract Mefenpyr-diethyl is a foliar-acting safener of the pyrazoline chemical group, and after its absorption, metabolization detoxification herbicides occur in treated plants. Studies have demonstrated protective effect this for herbicide fenoxaprop-P-ethyl grass. Thus, work aimed to evaluate whether tank mixture mefenpyr-diethyl has response haloxyfop-methyl non-perennial bahiagrass. The ex...

where [E]/[E], is fractional enzyme activity, and t is reaction time. The constants C and k were determined graphically (Defares & Sneddon, 1960). The results of the effect of diethyl pyrocarbonate on DEAE-cellulose column-chromatography fractions obtained from two samples of normal gastric mucosa and three samples of stomach adenocarcinoma are presented in summary form in Table I. It will be s...