Results 1 to 10 of about 27,494 (165)

Catalytic asymmetric reductive hydroalkylation of enamides and enecarbamates to chiral aliphatic amines [PDF]

open access: yesNature Communications, 2021
Enantiopure aliphatic amines are frequently encountered as chiral auxiliaries and synthetic intermediates for bioactive compounds. Here, the authors report a mild nickel-catalysed asymmetric reductive hydroalkylation to convert enamides and enecarbamates
Jia-Wang Wang   +7 more
doaj   +2 more sources

Enantioselective access to chiral aliphatic amines and alcohols via Ni-catalyzed hydroalkylations [PDF]

open access: yesNature Communications, 2021
Chiral aliphatic amine and alcohol derivatives are difficult to access due to the challenge to differentiate between spatially and electronically similar alkyl groups.
Shan Wang   +5 more
doaj   +2 more sources

From sugars to aliphatic amines: as sweet as it sounds? Production and applications of bio-based aliphatic amines

open access: yesChemical Society Reviews
This review provides a holistic overview of aliphatic amine production, from feedstock to applications. It assesses the feasibility of using biomass as an alternative resource in amine synthesis and their usage in applications of societal importance.
Hans Steenackers   +2 more
exaly   +3 more sources

From amines to (form)amides: a simple and successful mechanochemical approach

open access: yesBeilstein Journal of Organic Chemistry, 2022
Two easily accessible routes for preparing an array of formylated and acetylated amines under mechanochemical conditions are presented. The two methodologies exhibit complementary features as they enable the derivatization of aliphatic and aromatic ...
Federico Casti   +2 more
doaj   +1 more source

Tailored photoenzymatic systems for selective reduction of aliphatic and aromatic nitro compounds fueled by light

open access: yesNature Communications, 2023
The selective enzymatic reduction of nitroaliphatic and nitroaromatic compounds to aliphatic amines and amino-, azoxy- and azo-aromatics, respectively, remains a persisting challenge for biocatalysis.
Alejandro Prats Luján   +5 more
doaj   +1 more source

Thermodynamic Study on Reaction of Tetra Sulfona to Phenyl Porphyrin Iron (II) Complex With Different Nitrogenous Ligands [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2015
The binding characteristics of number of axial aliphatic amines ligands were studied with Fe(ll)TPPS4 complex in aqueous solutions at hiqh PHs > 12.5 . All formed low spin octahedral complexes . Electronic absorption , ΔH , ΔG , and ΔS of these complexes
Jihad A. Taies, Riyath M. Dalaf
doaj   +1 more source

Cloud condensation nuclei (CCN) activity of aliphatic amine secondary aerosol [PDF]

open access: yesAtmospheric Chemistry and Physics, 2014
Aliphatic amines can form secondary aerosol via oxidation with atmospheric radicals (e.g., hydroxyl radical and nitrate radical). The particle can contain both secondary organic aerosol (SOA) and inorganic salts.
X. Tang   +7 more
doaj   +1 more source

Reshaping Ullmann Amine Synthesis in Deep Eutectic Solvents: A Mild Approach for Cu-Catalyzed C–N Coupling Reactions With No Additional Ligands

open access: yesFrontiers in Chemistry, 2019
The CuI-catalyzed Ullmann amine cross-coupling between (hetero)aryl halides (Br, I) and aromatic and aliphatic amines has been accomplished in deep eutectic solvents as environmentally benign and recycling reaction media.
Andrea Francesca Quivelli   +3 more
doaj   +1 more source

Scientific Opinion on Flavouring Group Evaluation 86, Revision 2 (FGE.86Rev2): Consideration of aliphatic and arylalkyl amines and amides evaluated by JECFA (65th meeting) [PDF]

open access: yesEFSA Journal, 2015
The Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids of the European Food Safety Authority was requested to consider evaluations of flavouring substances assessed since 2000 by the Joint FAO/WHO Expert Committee on Food Additives
EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF)
doaj   +1 more source

Home - About - Disclaimer - Privacy