Results 21 to 30 of about 174,959 (338)

Metabolism of amino acid amides in Pseudomonas putida ATCC 12633 [PDF]

open access: yes, 1993
The metabolism of the natural amino acid L-valine, the unnatural amino acids D-valine, and D-, L-phenylglycine (D-, L-PG), and the unnatural amino acid amides D-, L-phenylglycine amide (D, L-PG-NH2) and L-valine amide (L-Val-NH2) was studied in ...
Croes, L.M.,   +4 more
core   +1 more source

An efficient method for the construction of polysubstituted 4-pyridones via self-condensation of β-keto amides mediated by P2O5 and catalyzed by zinc bromide

open access: yesBeilstein Journal of Organic Chemistry, 2013
A self-condensation cyclization reaction mediated by phosphorus pentoxide (P2O5) and catalyzed by zinc bromide (ZnBr2) is presented for the synthesis of polysubstituted 4-pyridones and 2-pyridones from β-keto amides.
Liquan Tan   +3 more
doaj   +1 more source

Tandem aza-Claisen rearrangement and ring closing metathesis reactions: the stereoselective synthesis of functionalised carbocyclic amides [PDF]

open access: yes, 2009
A one-pot, tandem process has been developed for the efficient synthesis of functionalised carbocyclic amides. A substituted cyclopentenyl trichloroacetamide was synthesised using a tandem thermal aza-Claisen rearrangement and RCM process, while an ...
Donaldson, A.   +2 more
core   +1 more source

KNH2 - KH: a metal amide - hydride solid solution [PDF]

open access: yes, 2016
We report for the first time the formation of a metal amide-hydride solid solution. The dissolution of KH into KNH2 leads to an anionic substitution, which decreases the interaction among NH2 - ions.
Baricco, Marcello   +15 more
core   +4 more sources

Experimental pharmacological research regarding some newly synthesized benzamides on central nervous system functions [PDF]

open access: yes, 2017
Three newly synthesized benzamides by the Department of Pharmaceutical Chemistry of the Faculty of pharmacy from the University of Medicine and Pharmacy „Carol Davila” Bucharest were tested in order to determine whether these new molecules have similar ...
Chiriță, Cornel   +4 more
core   +4 more sources

Practical and Metal-Free Synthesis of Novel Enantiopure Amides Containing the Potentially Bioactive 5-Nitroimidazole Moiety

open access: yesMolecules, 2016
We report here a practical and metal-free synthesis of novel enantiopure amides containing the drug-like 5-nitroimidazole scaffold. The first step was a metal-free diastereoselective addition of 4-(4-(chloromethyl)phenyl)-1,2-dimethyl-5-nitro-1H ...
Cédric Spitz   +4 more
doaj   +1 more source

Diisopropylamide and TMP turbo-grignard reagents : a structural rationale for their contrasting reactivities [PDF]

open access: yes, 2010
A neutral dimeric molecule in crystal form, the diisopropylamido turbo-Grignard reagent "(iPr2N)MgCl⋅LiCl" (see structure; blue N, red O, green Mg, yellow Cl, black C) separates into several charged ate species in dynamic exchange with each other in THF ...
Armstrong, David R.   +4 more
core   +1 more source

Solvent-Free Iron(III) Chloride-Catalyzed Direct Amidation of Esters

open access: yesMolecules, 2020
Amide functional groups are prominent in a broad range of organic compounds with diverse beneficial applications. In this work, we report the synthesis of these functional groups via an iron(iii) chloride-catalyzed direct amidation of esters.
Blessing D. Mkhonazi   +4 more
doaj   +1 more source

One-Pot Synthesis of Single-Source Precursors for Nanocrystalline LED Phosphors M2Si5N8:Eu2+ (M = Sr, Ba) [PDF]

open access: yes, 2009
Highly efficient red-emitting nitridosilicate phosphors Sr2Si5N8:Eu2+ and Ba1.5Sr0.5Si5N8:Eu2+ (doping level 1%) applicable to phosphor converted pc-LEDs were synthesized in nanocrystalline form at low temperatures employing a novel single-source ...
Schmidt, Peter J.   +2 more
core   +1 more source

Fully Chlorinated N-Silyl Amides of Titanium and Tungsten [PDF]

open access: yes, 1997
The reaction of hexachlorodisilazanyllithium (Cl3Si)2NLi (1), with TiCl4 leads selectively to the novel fully chlorinated amides (Cl3Si)2NTiCl3 (2) or [(Cl3Si)2N]2 TiCl2 (3), respectively, depending on the molar ratio of the starting materials.
Milius, Wolfgang   +2 more
core   +1 more source

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