A Highly Selective Synthesis of (E)‐11‐Arylidenebenzo[4',5']thieno[2',3':4,5] Pyrimido[2,1‐a]isoindol‐13(1H)‐ones via Copper‐Catalyzed Sonogashira Coupling and Hydroamination
Sign Up to like & getrecommendations! Published in 2024 at "Asian Journal of Organic Chemistry"
DOI: 10.1002/ajoc.202400163
Abstract: An efficient and highly selective reaction of 2‐(2‐bromophenyl)‐5,6,7,8‐tetrahydrobenzo[4,5]thieno[2,3‐d]pyrimidin‐4(3H)‐one and terminal alkyne has been developed under palladium‐free conditions by CuI‐catalyzed sequential Sonogashira coupling reaction and 5‐exo‐dig hydroamination reaction. A series of 11‐arylidene‐2,3,4,11‐tetrahydrobenzo[4',5']thieno[2',3':4,5]pyrimido[2,1‐a]isoindol‐13(1H)‐one derivatives with only the… read more here.
Keywords: highly selective; hydroamination; thieno; sonogashira coupling ... See more keywords
Rare‐Earth Metal Alkyl Complexes Featuring Bridged Bis(β‐Diketiminato) Ligand: Synthesis, Structure, and Catalytic Activity for Intramolecular Hydroamination Reaction
Sign Up to like & getrecommendations! Published in 2025 at "Applied Organometallic Chemistry"
DOI: 10.1002/aoc.70018
Abstract: A series of rare‐earth metal alkyl complexes containing chiral cyclohexyl‐bridged bis(β‐diketiminate) ligands have been synthesized, with a general chemical formula of {Cy[NC (Me)CHC (Me)NAr]2}RECH2SiMe3 [Cy=(1R, 2R)‐(‐)‐1,2‐cyclohexyl, Ar=2,6‐iPr2C6H3, RE=Dy(1), Er(2), Yb(3), Y(4)]. These compounds were prepared… read more here.
Keywords: reaction; rare earth; earth metal; hydroamination ... See more keywords
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
Gold(I) Complexes with Bulky Phosphanes: A Dual Approach to Triplet Harvesting and Hydroamination Catalysis
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DOI: 10.1021/acs.inorgchem.4c04964
Abstract: Two families of mononuclear gold(I) complexes featuring Au-chromophore units, with chromophores being carbazole (a), phenanthrene (b), or dibenzofuran (c), were synthesized. The Au(I) atoms are coordinated to two phosphanes, either PMe2ArXyl2 (ArXyl2 = 2,6-C6H3-(2,6-C6H3–Me2)2) (P1)… read more here.
Keywords: bulky phosphanes; gold complexes; triplet; 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