Ceria‐modified copper phyllosilicate catalyst for one‐pot hydroamination of 5‐HMF with nitro‐compounds
Sign Up to like & getrecommendations! Published in 2023 at "ChemCatChem"
DOI: 10.1002/cctc.202300294
Abstract: Ceria‐modified mineral‐like copper catalyst 12 %Cu/SiO2−CeO2 showed a high activity and selectivity in one‐pot hydroamination of bio‐available 5‐hydroxymethylfurfural with nitro‐aromatic compounds. The catalyst was obtained by conventional deposition‐precipitation method with urea from commercial silica, copper nitrate,… read more here.
Keywords: copper; catalyst; phyllosilicate; one pot ... See more keywords
Rare‐Earth‐Metal‐Catalyzed Kinetic Resolution of Chiral Aminoalkenes via Hydroamination: The Effect of the Silyl Substituent of the Binaphtholate Ligand on Resolution Efficiency
Sign Up to like & getrecommendations! Published in 2019 at "European Journal of Organic Chemistry"
DOI: 10.1002/ejoc.201900107
Abstract: The kinetic resolution of α‐substituted aminopentenes via intramolecular hydroamination was investigated using various 3,3′‐silyl‐substituted binaphtholate yttrium catalysts. High efficiencies in the kinetic resolution were observed for methyl‐, benzyl‐, and phenyl‐substituted substrates utilizing the cyclohexyldiphenylsilyl‐substituted catalyst… read more here.
Keywords: resolution; silyl; kinetic resolution; binaphtholate ... See more keywords
Mesoporous silicon sulfonic acid as a highly efficient and stable catalyst for the selective hydroamination of cyclohexene with cyclohexylamine to dicyclohexylamine in the vapor phase
Sign Up to like & getrecommendations! Published in 2020 at "Frontiers of Chemical Science and Engineering"
DOI: 10.1007/s11705-020-1973-2
Abstract: In this work, a new mesoporous silicon sulfonic acid catalyst derived from silicic acid has been successfully prepared by the chemical bonding method. The physico-chemical properties of mesoporous silicon sulfonic acid catalysts have been systematically… read more here.
Keywords: silicon sulfonic; mesoporous silicon; sulfonic acid; hydroamination ... See more keywords
Hydroamination reactions catalyzed by [Au2(μ-Cl)(μ-bis(phosphino)ferrocene)][BArF24]
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Organometallic Chemistry"
DOI: 10.1016/j.jorganchem.2019.121049
Abstract: Abstract 1,1′-bis(phosphino)ferrocene ligands are commonly employed in a variety of catalytic systems. These ligands are of particular interest as the steric and electronic properties of the phosphorus donor atoms can be altered by changing the… read more here.
Keywords: ferrocene; phosphino ferrocene; bis; bis phosphino ... See more keywords
Intramolecular hydroamination of trisubstituted aminoallenes catalyzed by titanium complexes of diaryl substituted tridentate imine-diols
Sign Up to like & getrecommendations! Published in 2021 at "Polyhedron"
DOI: 10.1016/j.poly.2021.115070
Abstract: Abstract Our laboratory has developed catalysts based on earth abundant titanium for asymmetric reactions including intramolecular hydroamination. Previously, we showed that titanium complexes of imine diol ligands showed improved enantioselectivity relative to complexes with bidentate… read more here.
Keywords: diaryl substituted; titanium complexes; intramolecular hydroamination; hydroamination ... See more keywords
MAu2GeS4-Chalcogel (M = Co, Ni): Heterogeneous Intra- and Intermolecular Hydroamination Catalysts.
Sign Up to like & getrecommendations! Published in 2017 at "Inorganic chemistry"
DOI: 10.1021/acs.inorgchem.7b01099
Abstract: High surface area macroporous chalcogenide aerogels (chalcogels) MAu2GeS4 (M = Co, Ni) were prepared from K2Au2GeS4 precursor and Co(OAc)2 or NiCl2 by one-pot sol-gel metathesis reactions in aqueous media. The MAu2GeS4-chalcogels were screened for catalytic… read more here.
Keywords: intra intermolecular; heterogeneous intra; intermolecular hydroamination; mau2ges4 chalcogel ... See more keywords
Alkyne Hydroamination Catalyzed by Silica-Supported Isolated Zn(II) Sites
Sign Up to like & getrecommendations! Published in 2018 at "Organometallics"
DOI: 10.1021/acs.organomet.8b00202
Abstract: Hydroamination is an atom-economical reaction to form C–N bonds, which are ubiquitous in organic compounds. Hydroamination has seen prolific advancements and has mostly focused on the development of homogeneous catalysts based on lanthanides or transition… read more here.
Keywords: hydroamination catalyzed; alkyne hydroamination; catalyzed silica; isolated sites ... See more keywords
Reversible C–N Bond Formation in the Zirconium-Catalyzed Intermolecular Hydroamination of 2-Vinylpyridine
Sign Up to like & getrecommendations! Published in 2019 at "Organometallics"
DOI: 10.1021/acs.organomet.8b00904
Abstract: The intermolecular hydroamination of alkenes with alkylamines has been a long-standing challenge in catalysis, partially due to the near-thermoneutral nature of this transformation. Consistent with this understanding, we report the direct observation of reversible C–N… read more here.
Keywords: bond formation; hydroamination; intermolecular hydroamination; reversible bond ... See more keywords
Mild Base-Promoted Tandem Nucleophilic Substitution/Decarboxylation/Hydroamination: Access to 3-Sulfonylindoles and 2-Methyleneindophenols.
Sign Up to like & getrecommendations! Published in 2021 at "Organic letters"
DOI: 10.1021/acs.orglett.1c03472
Abstract: We have developed an efficient construction of 3-sulfonylindoles and 2-methyleneindophenols via decarboxylative propargylation/hydroamination of ethynyl benzoxazinanones using sodium sulfonates and phenols as the nucleophiles. The reaction featured mild conditions (K2CO3), simple operation, and high chemoselectivity… read more here.
Keywords: tandem nucleophilic; mild base; hydroamination; promoted tandem ... See more keywords
Transition-Metal-Free Regioselective Intermolecular Hydroamination of Conjugated 1,3-Dienes with Heterocyclic Amines.
Sign Up to like & getrecommendations! Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.2c00810
Abstract: The unique property of hexafluoroisopropanol (HFIP) enables the regioselective hydroamination of 1,3-dienes with nitrogen heterocycles in a Markovnikov manner in the presence of catalytic Brønsted acid. This transition-metal-free intermolecular hydroamination protocol is achieved under mild… read more here.
Keywords: heterocyclic amines; metal free; transition metal; hydroamination ... See more keywords
Rhodium-/Iridium-Catalyzed Hydroamination for the Synthesis of 1,2-, 1,3-, or 1,4-Diamines.
Sign Up to like & getrecommendations! Published in 2022 at "ACS catalysis"
DOI: 10.1021/acscatal.2c01835
Abstract: An Ir-catalyzed regioselective hydroamination of allyl amines using aryl amines and catalyst-controlled regiodivergent hydroamination of allylic and homoallylic amines with aniline nucleophiles are reported. The directed hydroamination reactions afford a variety of 1,2-, 1,3-, and… read more here.
Keywords: hydroamination synthesis; hydroamination; iridium catalyzed; synthesis diamines ... See more keywords