Results 51 to 60 of about 79,802 (211)

The maison europeenne des procedes innovants (MEPI),an example of piloting and industrial demonstration facility for the green process engineering [PDF]

open access: yes, 2009
. Economical, energy savings and environmental challenges require an actual technological breakthrough in process engineering, aiming with productivity, product quality, safety and reliability objectives.
Caze, Pierre   +5 more
core  

Vibrational signatures of gaseous Meisenheimer complexes bonded at carbon and nitrogen [PDF]

open access: yes, 2017
Anionic adducts of 1,3,5-trinitrobenzene (TNB) with deprotonated pyrrolidine (Pyr), imidazole (Im), acetone (Ac) and acetylacetone (Acac) have been delivered into the gas phase by electrospray ionization.The so-formed ions, TNB-Nu−(Nu = Pyr, Im, Ac, Acac)
Chiavarino, Barbara   +2 more
core   +1 more source

Chemical Reactivity of Chlorambucil in Organic Solvents: Influence of 4-Chloro Butyronitrile Nucleophile to Voltammogram Profiles

open access: yesInternational Journal of Electrochemical Science, 2011
Chlorambucil is one of anticancer drug that has been mainly used in the treatment of cancer disease. It is an alkylating agent and can be given orally.
Henry Setiyanto   +4 more
doaj   +1 more source

The Human Ntn-Hydrolase Superfamily: Structure, Functions and Perspectives

open access: yesCells, 2022
N-terminal nucleophile (Ntn)-hydrolases catalyze the cleavage of amide bonds in a variety of macromolecules, including the peptide bond in proteins, the amide bond in N-linked protein glycosylation, and the amide bond linking a fatty acid to sphingosine ...
Arne Linhorst, Torben Lübke
doaj   +1 more source

Kinetics and Mechanism of Hydrolysis of Benzimidazolylcarbamates [PDF]

open access: yes, 2007
Synthesis of new 2-aminobenzimidazole-1-carbamates was accomplished by carbamoylation of 2-aminobenzimidazole using different substituted phenyl chloroformates. The aqueous hydrolysis of the new compounds was examined in the pH range 1-13 at 25 oC.
Corte Real, M.   +4 more
core   +2 more sources

Palladium-catalyzed formation of oxazolidinones from biscarbamates: a mechanistic study

open access: yesBeilstein Journal of Organic Chemistry, 2011
Oxazolidinones can be synthesized starting from cyclic biscarbamates via a palladium-catalyzed reaction. To test the proposed mechanism of this reaction, first, bicyclonorcarene endoperoxides derived from cyano and carbomethoxy cycloheptatrienes were ...
Benan Kilbas, Metin Balci
doaj   +1 more source

Compare and contrast the reaction coordinate diagrams for chemical reactions and cytoskeletal force generators. [PDF]

open access: yes, 2013
Reaction coordinate diagrams are used to relate the free energy changes that occur during the progress of chemical processes to the rate and equilibrium constants of the process.
Scholey, Jonathan M
core   +2 more sources

Non-empirical calculations for minimal energetic reaction pathways of hf molecule addition to acetylene and methylacetylene

open access: yesТонкие химические технологии, 2009
Potential energy surfaces of gas-phased synchronous addition of HF to acetylene and methylacetylene. A non-empirical Harthree-Fock-Ruthane method (Gaussian-03, G-31++G** basis) with electronic correlation consideration in MP2 approximation (Moeller ...
Yu. B. Kirillov, N. M. Klimenko
doaj  

Quantitative representation of reactivity, selectivity and site activation concepts in organic chemistry [PDF]

open access: yes, 2004
Indexación: ScieloReactivity, selectivity and site activation are classical concepts in chemistry which are amenable to quantitative representation, in terms of static global, local and non local density response functions.
Contreras, Renato R.   +2 more
core  

Carbocationoids, a concept for controlling highly reactive cationic species

open access: yesCommunications Chemistry
Carbocations, which are positively charged highly electrophilic intermediates, are efficacious for the direct alkylation of low-reactive nucleophiles. The utilization of carbocations in SN1 reactions relies on the activation of their precursors in the ...
Hikaru Fujita   +6 more
doaj   +1 more source

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