Yeast alcohol dehydrogenase has been found to catalyze the reduction of a series of para-substituted benzaldehydes at markedly different rates. By steady state kinetic analysis, values of kB and ko have been obtained for yeast alcohol dehydrogenase reduction of $-Br-, p-Cl-, H-, &CH3, &CH80benzaldehyde by reduced nicotinamide adenine dinucleotide (NADH) and reduced nicotinamide adenine dinucleo...

In order to investigate nitro-substitutent's effect on degradation of phenols at boron-doped diamond (BDD) anodes, cyclic voltammetries of three nitrophenol isomers: 2-nitrophenol (2NP), 3-nitrophenol (3NP) and 4-nitrophenol (4NP) were studied, and their bulk electrolysis results were compared with phenol's (Ph) under alkaline condition. The voltammetric study showed nitrophenols could be attac...

The formation of N-hydroxy-N-arylacylamides from nitroso aromatic compounds and 2-oxo acids was investigated using rat liver subcellular fractions. Activities were found in both mitochondria and cytosol, except for activities for phenylpyruvate and glyoxylate; the former did not produce N-hydroxy-N-phenylphenylacetamide and the latter nonenzymatically produced N-hydroxy-N-phenylformamide with n...

R e i n e r L u c k e n b a c h u n d N i k o l a u s M ü l l e r [1] Organisch-Chemisches Institut der Universität Mainz Z . Naturforsch. 34b, 464 -480 (1979); eingegangen am 10. A u g u s t / 1 9 . Dezember 1978 R ing Opening, W o o d w a r d H o f f m a n n Rules, Allylic Cations, Dimerisation, 1,5-Hexadienes React ion of cyc lopropyl halides with sodium iodide in acetone [i.e. under typical...

Kinetic studies of the reactions of α-bromoacetanilides [YC6H4NHC(=O)CH2Br] with substituted benzylamines (XC6H4CH2NH2) have been carried out in dimethyl sulfoxide at 35.0 C. The Hammett plots for substituent (Y) variations in the substrate (log kN vs. σY) are biphasic concave upwards/downwards with breaks at Y = 4-Cl (σY = 0.23). The Hammett coefficients ρY and the cross-interaction constant ρ...

A series of paddlewheel diruthenium(ii, ii) complexes with various chlorine-substituted benzoate ligands (Cl-series) was synthesized as tetrahydrofuran (THF) adducts [Ru2(ClxPhCO2)4(THF)2]; where ClxPhCO2(-) = o-chlorobenzoate, ; m-chlorobenzoate, ; p-chlorobenzoate, ; 2,3-dichlorobenzoate, ; 2,4-dichlorobenzoate, ; 2,5-dichlorobenzoate, ; 2,6-dichlorobenzoate, ; 3,4-dichlorobenzoate, ; 3,5-dic...

Three distinct four-component supramolecular nanorotors were prepared, using, for the first time, bipyridine instead of phenanthroline stations in stator. Following our established self-sorting protocol to multicomponent nanodevices, self-assembled by mixing stator, rotators with various pyridine head groups, copper(I) ions and 1,4-diazabicyclo[2.2.2]octane (DABCO). Whereas exchange a vs. stati...

The energetics and kinetics of the reaction of variously substituted benzyl radicals with a model alkene were calculated at the G3(MP2)-RAD//B3-LYP/6-31G(d) level of theory to determine whether such reactions are amenable to Hammett analysis. The reactions were studied both in the gas phase and in toluene solution in the temperature range 298-353 K; calculations include 1D-hindered rotor correc...