نتایج جستجو برای: hydroxamic acids alkyl substituents

تعداد نتایج: 283965  

Journal: :Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology 2004
Dennis A Gaal James E McGarrah Fang Liu Jamie E Cook Joseph T Hupp

Photo-excitation of chromophoric metal complexes electrostatically adsorbed to tin-oxide semiconductor nanoparticles is often accompanied by injection of electrons from the complexes into the semiconductor conduction band. The mechanism of back electron transfer (semiconductor particle to adsorbed molecule) for a family of tris-bipyridyl ruthenium and osmium complexes has been examined by evalu...

Journal: :Hydrogen 2023

Alkyl-cyclohexanes can be considered as suitable model compounds to understand the thermochemistry of aromatic and their hydrogenated counterparts discussed Liquid Organic Hydrogen Carrier systems. Thermochemical measurements on these hydrogen-rich are thwarted by complications due 99.9 % purity limitation sample size specific methods. However, data vaporisation formation enthalpies necessary o...

Journal: :Chemical & pharmaceutical bulletin 2000
Y Liao S Hendrata S Y Bae B Wang

A coumarin-based prodrug system has been recently developed in our laboratory for the preparation of esterase-sensitive prodrugs of amines, peptides, and peptidomimetics. The drug release rates from this prodrug system were found to be dependent on the structural features of the drug moiety. In certain cases, the release can be undesirably slow for drugs that are secondary amines with relativel...

Journal: :The Biochemical journal 1966
A R Main F L Hastings

1. The K(m) and catalytic-centre activities for human serum cholinesterase and methyl, ethyl, n-propyl and n-butyl butyrate substrates were determined and compared with the related inhibition constants of a similarly substituted organophosphate inhibitor series based on malaoxon. The results indicated that the catalytic-centre activities approximated to k(+2(a)), the acylation rate constant, an...

Journal: :Journal of bacteriology 1965
R W Hogg C S Biswas H P Broquist

Hogg, Robert W. (University of Illinois, Urbana), Chitra S. Biswas, and Harry P. Broquist. Interference with valine and isoleucine biosynthesis by cyclic hydroxamic acids. J. Bacteriol. 90:1265-1270. 1965.-The introduction of a hydroxyl group in a number of common barbiturates, a substitution which converts these compounds to cyclic hydroxamic acids, gives rise to compounds which inhibit growth...

Journal: :Plant physiology 1971
G R Schonbaum W D Bonner B T Storey J T Bahr

Hydroxamic acids, R-CONHOH, are inhibitors specific to the respiratory pathway through the alternate, cyanide-insensitive terminal oxidase of plant mitochondria. The nature of the R group in these compounds affects the concentration at which the hydroxamic acids are effective, but it appears that all hydroxamic acids inhibit if high enough concentrations are used. The benzhydroxamic acids are e...

2007
J. P. Mahalik Giridhar Madras

Effect of alkyl group substituents on the thermal and enzymatic degradation of poly (n-alkyl acrylates) J. P. Mahalik and Giridhar Madras∗ Department of Chemical Engineering, Indian Institute of Science, Bangalore-12 Abstract The effect of alkyl group substituents on the thermal degradation kinetics of poly (n-alkyl acrylate) was investigated in pyrolysis and in solution. The activation energie...

Journal: :Bulletin of the Chemical Society of Japan 1976

Journal: :Antimicrobial Agents and Chemotherapy 1977

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