Results 31 to 40 of about 197,196 (315)
Direct and Modular Access to Allylic Amines via Nickel-Catalyzed Three-Component Coupling [PDF]
, 2023 The preparation of allylic amines by transition metal catalysis has played an important role in synthetic chemistry; however, the main employment of prefunctionalized coupling partners through multistep synthesis from available starting materials limits ...
Changyu, Xu +4 more
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Molecules, 2000 Thiols and amines were benzamidomethylated in water solution at room temperature with (benzamidomethyl)triethylammonium chloride (1) in the presence of a small quantity of triethylamine (pH>9).
Emil Popovski +2 more
doaj +1 more source
Michael addition of aromatic and aliphatic amines to unsaturated olefines in the presence of TMSCl under solvent free conditions [PDF]
شیمی کاربردی روز, 2008 An operationally simple and highly fast protocol for TMSCl (10 mol%) catalyzed conjugate addition of aromatic and aliphatic amines derivatives to unsaturated carbonyl compounds in good to excellent yields has been developed.
Najmadin Azizi
doaj +1 more source
Aminoalkylation of [1.1.1]Propellane Enables Direct Access to High-Value 3‑Alkylbicyclo[1.1.1]pentan-1-amines [PDF]
, 2019 Bicyclo[1.1.1]pentanes are effective bioisoteres for aromatic rings, tert-butyl groups, and alkynes. Here we report the first method to synthesize 3-alkylbicyclo[1.1.1]pentan-1-amines directly from [1.1.1]propellane via sequential addition of ...
Jonathan M. E. Hughes (6912470) +4 more
core +1 more source
New Synthetic Approaches to Multifunctional Phenazinium Salt Derivatives
Molecules, 2003 Two different approaches are offered for the synthesis under mild conditions of disubstituted phenazinium and benzo[a]phenazinium salts. Direct nucleophilic substitutions by primary and secondary amines in quaternary phenazinium salts containing an ...
Vladimir N. Silnikov, Inna Yu. Garipova
doaj +1 more source
Fluorinated Amine Stereotriads via Allene Amination [PDF]
Organic Letters, 2017 The incorporation of fluorine into organic scaffolds often improves the bioactivity of pharmaceutically relevant compounds. C-F/C-N/C-O stereotriad motifs are prevalent in antivirals, neuraminidase inhibitors, and modulators of androgen receptors, but are challenging to install.
Lu Liu +4 more
openaire +2 more sources
Química Nova, 2009 The philosophy of organocatalysis is based on the utilization of organic compounds to catalyze organic transformations without the intervention of metals.
Giovanni W. Amarante, Fernando Coelho
doaj +1 more source
One-Pot Reactions of Triethyl Orthoformate with Amines
Reactions, 2023 One-pot reactions offer advantages like easy automation, higher product yields, minimal waste generation, operational simplicity, and thus reduced cost, time and energy.
Elina Marinho
doaj +1 more source
Influence of Alcoholic and Malolactic Fermentation on the Level of Biogenic Amines in Wine [PDF]
Техника и технология пищевых производств, 2021 Introduction. The concentration of biogenic amines is an important indicator of the safety of food products, especially winemaking. In grape wines, this concentration varies widely depending on the grape variety, its microbiological state, processing ...
Natalia M. Ageyeva +2 more
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Bacterial metabolism of methylated amines and identification of novel methylotrophs in Movile Cave [PDF]
, 2015 Movile Cave, Romania, is an unusual underground ecosystem that has been sealed off from the outside world for several million years and is sustained by non-phototrophic carbon fixation. Methane and sulfur-oxidising bacteria are the main primary producers,
Alexandra M Hillebrand-Voiculescu +20 more
core +1 more source