1674-37-9Relevant articles and documents
A new synthetic protocol for the direct preparation of organomanganese reagents; organomanganese tosylates and mesylates
Kim, Seung-Hoi,Rieke, Reuben D.
, p. 4931 - 4934 (1999)
A new synthetic route to organomanganese sulfonate reagents has been developed. These useful reagents can be readily prepared via direct oxidative addition of highly reactive manganese to carbon-oxygen bonds of the corresponding tosylates and mesylates under mild conditions.
Highly selective aerobic oxidation of alkyl arenes and alcohols: Cobalt supported on natural hydroxyapatite nanocrystals
Shaabani, Ahmad,Shaabani, Shabnam,Afaridoun, Hadi
, p. 48396 - 48404 (2016)
Cobalt was successfully immobilized on natural hydroxyapatite nanocrystals which were obtained from cow bones (Co-NHAp). The chemical, structural, and electronic properties of this nanobiocatalyst were investigated using flame atomic absorption spectroscopy (FAAS), Fourier transform infrared (FT-IR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS) analysis. Natural hydroxyapatite (NHAp) as the support enhanced both catalytic activity and selectivity in the liquid phase aerobic oxidation of alkyl arenes and alcohols to their corresponding carbonyl compounds. The use of air as an inexpensive oxidant, the recyclability of the Co-NHAp nanobiocatalyst without significant decrease in its catalytic activity and easy workup are some advantages of this work.
TiCl4-catalyzed indirect anti-Markovnikov hydration of alkynes: Application to the synthesis of benzo[b]furans
Ackermann, Lutz,Kaspar, Ludwig T.
, p. 6149 - 6153 (2007)
(Chemical Equation Presented) An efficient methodology for the indirect anti-Markovnikov hydration of unsymmetrically substituted terminal and internal alkynes is based on TiCl4-catalyzed hydroamination reactions. Its application to ortho-alkynylhaloarenes, followed by a copper-catalyzed O-arylation, provides flexible access to substituted benzo[b]furans.
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Suzuki et al.
, p. 2195 (1975)
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Ir(NHC)-Catalyzed Synthesis of β-Alkylated Alcohols via Borrowing Hydrogen Strategy: Influence of Bimetallic Structure
Sung, Kihyuk,Lee, Mi-hyun,Cheong, Yeon-Joo,Kim, Yu Kwon,Yu, Sungju,Jang, Hye-Young
supporting information, p. 3090 - 3097 (2021/05/10)
Multi N-heterocyclic carbene(NHC)-modified iridium catalysts were employed in the β-alkylation of alcohols; dimerization of primary alcohols (Guerbet reaction), cross-coupling of secondary and primary alcohols, and intramolecular cyclization of alcohols. Mechanistic studies of Guerbet reaction, including kinetic experiments, mass analysis, and density functional theory (DFT) calculation, were employed to explain the fast reaction promoted by bimetallic catalysts, and the dramatic reactivity increase of monometallic catalysts at the late stage of the reaction. (Figure presented.).
Metal- And additive-free C-H oxygenation of alkylarenes by visible-light photoredox catalysis
García Manche?o, Olga,Kuhlmann, Jan H.,Pérez-Aguilar, María Carmen,Piekarski, Dariusz G.,Uygur, Mustafa
supporting information, p. 3392 - 3399 (2021/05/21)
A metal- and additive-free methodology for the highly selective, photocatalyzed C-H oxygenation of alkylarenes under air to the corresponding carbonyls is presented. The process is catalyzed by an imide-acridinium that forms an extremely strong photooxidant upon visible light irradiation, which is able to activate inert alkylarenes such as toluene. Hence, this is an easy to perform, sustainable and environmentally friendly oxidation that provides valuable carbonyls from abundant, readily available compounds.