Cobalt-Catalyzed Oxidative C-H Activation: Strategies and Concepts.
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DOI: 10.1002/cssc.202000024
Abstract: Inexpensive cobalt-catalyzed oxidative C-H functionalization has emerged as a powerful tool for the construction of C-C and C-Het bonds, which offers unique potential for transformative applications to modern organic synthesis. In the early stage, these… read more here.
Keywords: activation strategies; oxidative activation; catalyzed oxidative; cobalt catalyzed ... See more keywords
Iron Nitrate-Catalyzed Oxidative Esterification of Aldehydes and Alcohols with NHPI: Efficient Synthesis of N-hydroxyimide Esters
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DOI: 10.1002/ejoc.201701411
Abstract: An Fe(NO3)3*9H2O-catalyzed cross-dehydrogenative coupling reaction between N-hydroxyphthalimide (NHPI) or N-hydroxysuccinimide (NHSI) and aldehydes or alcohols in the air has been described. This transformation provided an efficient approach to prepare N-hydroxyimide ester derivatives with wide substrate… read more here.
Keywords: iron nitrate; esterification aldehydes; nitrate catalyzed; aldehydes alcohols ... See more keywords
NaI-Catalyzed Oxidative Amination of Aromatic Sodium Sulfinates: Synergetic Effect of Ethylene Dibromide and Air as Oxidants
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DOI: 10.1002/ejoc.201801386
Abstract: A novel NaI-catalyzed oxidative amination of sodium sulfinates, employing both ethylene dibromide (EDB) and air as the oxidants, is described. EDB was first demonstrated to be a promising mild organic oxidant that in air, converted… read more here.
Keywords: nai catalyzed; oxidative amination; sodium; air ... See more keywords
Role of purines on the copper-catalyzed oxidative damage in biological systems: Protection versus promotion
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DOI: 10.1002/qua.25527
Abstract: Oxidative damage to biomolecules is a serious health-threatening issue, which leads to the development of several diseases. Oxidative conditions are frequently catalyzed by metal ions. In this study, the role of purines in the copper-catalyzed… read more here.
Keywords: role purines; catalyzed oxidative; purines copper; oxidative damage ... See more keywords
Organotellurium-catalyzed oxidative deoximation reactions using visible-light as the precise driving energy
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DOI: 10.1016/j.cclet.2020.09.012
Abstract: Abstract Irradiated by visible light, the recyclable (PhTe)2-catalyzed oxidative deoximation reaction could occur under mild conditions. In comparison with the thermo reaction, the method employed reduced catalyst loading (1 mol% vs. 2.5 mol%), but afforded elevated product… read more here.
Keywords: catalyzed oxidative; driving energy; oxidative deoximation; organotellurium catalyzed ... See more keywords
Copper catalyzed oxidative coupling of ortho-vinylanilines with N-tosylhydrazones: Efficient synthesis of polysubstituted quinoline derivatives
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DOI: 10.1016/j.jcat.2018.04.005
Abstract: Abstract Efficient and general copper catalyzed oxidative cyclization of ortho-vinylaniline has been accomplished employing N-tosylhydrazone as coupling partner. Various substituted quinoline derivatives of biological importance were achieved in good to excellent yield. The important features… read more here.
Keywords: copper catalyzed; quinoline derivatives; coupling ortho; oxidative coupling ... See more keywords
Cobalt-catalyzed oxidative esterification of allylic/benzylic C(sp3)–H bonds
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DOI: 10.1016/j.tet.2017.04.002
Abstract: A protocol for the cobalt-catalyzed oxidative esterification of allylic/benzylic C(sp3)–H bonds with carboxylic acids was developed in this work. Mechanistic studies revealed that C(sp3)–H bond activation in the hydrocarbon was the turnover-limiting step and the… read more here.
Keywords: esterification allylic; benzylic sp3; cobalt catalyzed; oxidative esterification ... See more keywords
Chiral vanadium complex-catalyzed oxidative coupling of arenols
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DOI: 10.1016/j.tet.2020.131645
Abstract: Abstract This report describes the recent advances in the development of chiral vanadium complex-catalyzed oxidative couplings of phenols such as polycyclic phenols, hydroxycarbazoles, resorcinol, and sesamol derivatives. Catalysts containing a vanadium metal and multidentate ligand… read more here.
Keywords: vanadium; chiral vanadium; oxidative coupling; complex catalyzed ... See more keywords
B(C6F5)3-catalyzed oxidative deamination/cyclization cascade reaction of benzylamines and ketones for the synthesis of 2,4,6-triarylpyridines
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DOI: 10.1016/j.tetlet.2018.08.060
Abstract: Abstract The B(C6F5)3-catalyzed oxidative deamination/cyclization cascade reaction of benzylamines and ketones for the construction of 2,4,6-triarylpyridines under metal-/solvent-free conditions has been successfully achieved. The advantages of this strategy include good functional group tolerance, low catalyst… read more here.
Keywords: deamination cyclization; cascade reaction; cyclization cascade; c6f5 catalyzed ... See more keywords
Efficient Pd-catalyzed oxidative homocoupling of arylboronic acids in aqueous NaClO
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DOI: 10.1016/j.tetlet.2020.151784
Abstract: Abstract An efficient, mild and practical method was developed for the synthesis of biaryls via the Pd-catalyzed oxidative homocoupling of aromatic/heteroaromatic boronic acids in aqueous NaClO. read more here.
Keywords: catalyzed oxidative; aqueous naclo; oxidative homocoupling; efficient catalyzed ... See more keywords
Rhodium(III)-Catalyzed Oxidative Annulation of 4-Aminoquinolines and Acrylate through Two Consecutive C(sp2)-H Activations.
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DOI: 10.1021/acs.orglett.0c00630
Abstract: The C-H annulation of the five-position of quinolines and acrylates to afford heterocycles is an active field of research in organic synthesis. Herein the annulation of 4-aminoquinolines with acrylates through two consecutive C-H activations catalyzed… read more here.
Keywords: two consecutive; annulation; iii catalyzed; annulation aminoquinolines ... See more keywords