Category: 457-68-1

Li, Zhiping published the artcileFeCl₂-catalyzed selective C-C bond formation by oxidative activation of a benzylic C-H bond, Safety of Bis(4-fluorophenyl)methane, the publication is Angewandte Chemie, International Edition (2007), 46(34), 6505-6507, database is CAplus and MEDLINE.

Readily available and non-toxic FeCl₂ effectively catalyzes C-C bond formation by oxidative activation of benzylic C-H bonds in the presence of tert-Bu peroxide as a stoichiometric oxidant. The mild reaction conditions, good yields, low catalyst cost, and easy operation are the major advantages of this cross-dehydrogenation coupling reaction. A series of substituted 1,3-dicarbonyl compounds, e.g., I, were generated using this method.

Angewandte Chemie, International Edition published new progress about 457-68-1. 457-68-1 belongs to catalysis-chemistry, auxiliary class Fluoride,Benzene, name is Bis(4-fluorophenyl)methane, and the molecular formula is C13H10F2, Safety of Bis(4-fluorophenyl)methane.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Schmieder-van de Vondervoort, Lizette published the artcileLow temperature, high conversion, liquid-phase benzylic oxidation with dioxygen by metal/NHPI-catalyzed Co-oxidation with benzaldehyde, Computed Properties of 457-68-1, the publication is European Journal of Organic Chemistry (2003), 578-586, database is CAplus.

A new liquid-phase catalytic oxidation system for the low temperature, high conversion benzylic mono-oxyfunctionalization of 5H-dibenz[b,f]azepine-5-carboxamide (I) into oxcarbazepine with dioxygen has been developed. The method is based on a co-oxidation of I with benzaldehyde in the presence of a four-component catalyst system consisting of Co(OAc)₂, Ni(OAc)₂, Cr(NO₃)₃, and N-hydroxyphthalimide (NHPI). The influence of the catalyst system on the formation and decomposition of the crucial hydroperoxide intermediate has been investigated. Based on these results, the role of each of the components in the catalyst system is discussed. The scope of this method for the oxidation of other substrates has been studied, and the results are compared with those obtained by Co/NHPI catalyzed oxidation of these substrates.

European Journal of Organic Chemistry published new progress about 457-68-1. 457-68-1 belongs to catalysis-chemistry, auxiliary class Fluoride,Benzene, name is Bis(4-fluorophenyl)methane, and the molecular formula is C13H10F2, Computed Properties of 457-68-1.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Tanwar, Lalita published the artcileSynthesis of Benzylic Alcohols by C-H Oxidation, Category: catalysis-chemistry, the publication is Journal of the American Chemical Society (2019), 141(45), 17983-17988, database is CAplus and MEDLINE.

Selective methylene C-H oxidation for the synthesis of alcs. with a broad scope and functional group tolerance is challenging due to the high proclivity for further oxidation of alcs. to ketones. Here, authors report the selective synthesis of benzylic alcs. employing bis(methanesulfonyl) peroxide as an oxidant. Authors attempt to provide a rationale for the selectivity for monooxygenation, which is distinct from previous work; a proton-coupled electron transfer mechanism (PCET) may account for the difference in reactivity. Authors envision that our method will be useful for applications in the discovery of drugs and agrochems.

Journal of the American Chemical Society published new progress about 457-68-1. 457-68-1 belongs to catalysis-chemistry, auxiliary class Fluoride,Benzene, name is Bis(4-fluorophenyl)methane, and the molecular formula is C4H5NS2, Category: catalysis-chemistry.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Barbero, Margherita published the artcileSynthetic and Mechanistic Aspects of Acid-Catalyzed Disproportionation of Dialkyl Diarylmethyl Ethers: A Combined Experimental and Theoretical Study, Safety of Bis(4-fluorophenyl)methane, the publication is European Journal of Organic Chemistry (2009), 4346-4351, S4346/1-S4346/33, database is CAplus.

The disproportionation reactions of various dialkyl diarylmethyl ethers were carried out in the presence of a catalytic amount (10 mol-%) of o-benzenedisulfonimide as a Broensted acid catalyst; the reaction conditions were mild, and the yields of the diarylmethane target products were good. The catalyst was easily recovered and purified, ready to be used in further reactions. The theor. study confirmed that the reaction proceeds in two steps: The formation of a carbocation from the protonated ether followed by hydride transfer. Although the hydride transfer is the rate-determining step, it is the stability of the carbocation that determines the reaction rate and therefore the yields. (© Wiley-VCH Verlag GmbH and Co. KGaA, 69451 Weinheim, Germany, 2009).

European Journal of Organic Chemistry published new progress about 457-68-1. 457-68-1 belongs to catalysis-chemistry, auxiliary class Fluoride,Benzene, name is Bis(4-fluorophenyl)methane, and the molecular formula is C13H10F2, Safety of Bis(4-fluorophenyl)methane.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Li, Jia published the artcileCercosporin-bioinspired selective photooxidation reactions under mild conditions, Application of Bis(4-fluorophenyl)methane, the publication is Green Chemistry (2019), 21(22), 6073-6081, database is CAplus.

The development of an efficient system for selective oxidation of organic compounds to generate more valuable compounds with mol. oxygen is a significant challenge in industrial chem. Bioinspired by the ability of naturally occurring perylenequinonoid pigments (PQPs) to generate reactive oxygen species (ROS) upon photoirradiation, here we report that cercosporin, one of the perylenequinonoid pigments, can function as a cost-effective and environmentally friendly photocatalyst for a wide range of selective oxidations, including benzylic C-H bonds to carbonyls, amines to aldehydes, and sulfides to sulfoxides. All of the representative reactions proceeded smoothly with high efficiency under mild conditions. Owing to the use of inexpensive metal-free visible light-driven photocatalyst produced from microbial fermentation with cheap glucose as the starting material and the ease of handling, we expect that this developed method will be particularly attractive for many more applications in synthetic transformation.

Green Chemistry published new progress about 457-68-1. 457-68-1 belongs to catalysis-chemistry, auxiliary class Fluoride,Benzene, name is Bis(4-fluorophenyl)methane, and the molecular formula is C13H10F2, Application of Bis(4-fluorophenyl)methane.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Wu, Fan published the artcileHalogen Bond Induced Consecutive Csp³-H Aminations via Hydrogen Atom Transfer (HAT) Relay Strategy, Quality Control of 457-68-1, the publication is Organic Letters (2020), 22(6), 2135-2140, database is CAplus and MEDLINE.

An uncommon use of halogen bonding to induce intermol. Csp³-H amination while enabling a HAT relay strategy to access privileged pyrrolidines I [R = Me, Et, 4-OMeC₆H₄; Ar = Ph, 4-FC₆H₄, 4-BrC₆H₄, etc.] directly from alkanes was disclosed. Mechanistic studies support the presence of multiple halogen bond interactions at distinct reaction stages.

Organic Letters published new progress about 457-68-1. 457-68-1 belongs to catalysis-chemistry, auxiliary class Fluoride,Benzene, name is Bis(4-fluorophenyl)methane, and the molecular formula is C8H19NO2, Quality Control of 457-68-1.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia