Results 11 to 20 of about 32,282 (298)

Aliphatic Amines Unlocked for Selective Transformations through Diazotization [PDF]

open access: yesAngewandte Chemie - International Edition
While aromatic diazonium salts are important reagents in organic synthesis, ‘Diazonium ions generated from ordinary aliphatic primary amines are usually useless for preparative purposes, since they lead to a mixture of products giving not only ...
Dorota Gryko
exaly   +5 more sources

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 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

Computationally aided design of defect-appended aliphatic amines for CO2 activation within UiO-66

open access: yes, 2022
We report CO2 adsorption and subsequent formation of carbamic acid within defective UiO-66 functionalised with aliphatic amines. Periodic Density Functional Theory (DFT) calculations confirm the activation of CO2 with the aliphatic amines and the ...
Marco, Taddei   +2 more
core   +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

Cu-Catalysed Coupling of Aliphatic Amines with Alkylboronic Esters

open access: yes, 2023
We report a Cu-catalysed oxidative coupling of aliphatic amines with benzylic and aliphatic boronic esters to give high value alkyl amines, products found widely in applications from medicinal chemistry to materials science.
Antonio, Romero Arenas   +6 more
core   +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

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

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

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