Category: 457-68-1

Zhang, Heng published the artcileResearch progress in the synthesis of 4,4′-difluorodiphenylmethane, SDS of cas: 457-68-1, the publication is Youjifu Gongye (2014), 35-37, 42, database is CAplus.

A review. Physicochem. properties, spectral properties and application of 4,4′-difluorodiphenylmethane are introduced. Research progress situation in synthesis of 4,4′-difluorodiphenylmethane at home and abroad are summarized.

Youjifu Gongye 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 C3H6O2, SDS of cas: 457-68-1.

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

Sun, Sen published the artcileSynthesis of 4,4′-difluorobenzophenone by diazotization and oxidation of 4,4′-diaminodiphenylmethane, COA of Formula: C13H10F2, the publication is Huaxue Yu Nianhe (2003), 262-263, database is CAplus.

4,4′-Difluorobenzophenone was prepared by diazotization of 4,4′-diaminodiphenylmethane in fluoroboric acid and oxidation The target product was obtained in 84% yield under optimal conditions. An economic and effective production synthetic route was introduced and discussed.

Huaxue Yu Nianhe 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 C14H21BO2, COA of Formula: C13H10F2.

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

Sahoo, Santosh K. published the artcileAn unprecedented oxidative intermolecular homo coupling reaction between two sp³C-sp³C centers under metal-free condition, SDS of cas: 457-68-1, the publication is Tetrahedron Letters (2016), 57(31), 3476-3480, database is CAplus.

An unprecedented formation of benzylic sp³C-sp³C coupled dibenzylic products was illustrated. The reactions were carried out in the presence of three oxidizing reagents, i.e., diacetoxy-iodobenzene (IBDA), N-fluorobenzenesulfonimide (NFSI), and pyridine (Py) using toluene derivatives

Tetrahedron 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 C13H10F2, SDS of cas: 457-68-1.

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

Kramer, Soeren published the artcileSynthesis of ¦Á-Substituted Primary Benzylamines through Copper-Catalyzed Cross-Dehydrogenative Coupling, Computed Properties of 457-68-1, the publication is Organic Letters (2019), 21(1), 65-69, database is CAplus and MEDLINE.

A copper-catalyzed route to ¦Á-substituted, primary benzylamines by C-H functionalization of alkylarenes is described. The method directly affords the amine hydrochloride salt. Catalyst loadings down to 0.1 mol % in combination with scalability, insensitivity to air and moisture, and no need for column chromatog. makes the procedure highly practical. The facile synthesis of the racemate of a blockbuster drug highlights the relevance for the development of pharmaceuticals. Preliminary mechanistic data are also included.

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 C13H10F2, Computed Properties of 457-68-1.

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

Wang, Anwei published the artcileMn(III) active site in hydrotalcite efficiently catalyzes the oxidation of alkylarenes with molecular oxygen, HPLC of Formula: 457-68-1, the publication is Molecular Catalysis (2021), 111276, database is CAplus.

Developing efficient heterogeneous catalytic systems based on easily available materials and mol. oxygen for the selective oxidation of alkylarenes is highly desirable. In the present research, NiMn hydrotalcite (Ni₂Mn-LDH) was found as an efficient catalyst in the oxidation of alkylarenes using mol. oxygen as the sole oxidant without any additive. Impressive catalytic performance, excellent stability and recyclability, broad applicable scope and practical potential for the catalytic system were observed Mn³⁺ species is proposed to be the efficient active site, and Ni²⁺ played an important role in stabilizing the Mn³⁺ species in the hydrotalcite structure. The kinetic study showed that the aerobic oxidation of diphenylmethane is a first-order reaction over Ni₂Mn-LDH with the activation energy (E_a) and pre-exponential factor (A₀) being 85.7 kJ mol^-1 and 1.8 x 10⁹ min^-1, resp. The Gibbs free energy (¦¤G^¡Ù) is -10.4 kJ mol^-1 K^-1 for the oxidation based on Eyring-Polanyi equation, indicating the reaction is exergonic. The mechanism study indicated that the reaction proceeded through both radical and carbocation intermediates. The two species were then trapped by mol. oxygen and H₂O or hydroxyl species, resp., to yield the corresponding products. The present research might provide information for constructing highly efficient and stable active site for the catalytic aerobic oxidation based on available and economic material.

Molecular Catalysis 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 C12H17NO2, HPLC of Formula: 457-68-1.

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

Li, Wenjuan published the artcileIron-Catalyzed C-C Bond Cleavage and C-N Bond Formation, Application of Bis(4-fluorophenyl)methane, the publication is Advanced Synthesis & Catalysis (2013), 355(1), 181-190, database is CAplus.

A novel approach for C-N bond formation was developed by iron-catalyzed C-C bond cleavage. Anilines and sulfonamides reacted smoothly with 2-substituted 1,3-diphenylpropane-1,3-diones to afford N-alkylation products, in which the 1,3-dicarbonyl group acts as a leaving group in the presence of an iron catalyst. E.g., in presence of FeCl₃.6H₂O, alkylation of 4-O₂NC₆H₄NH₂ by I gave 90% II. The reversible C-C bond cleavage plays a driving force to give the thermodynamically stable products. The method is complementary to the previous methods for C-N bond formation.

Advanced Synthesis & Catalysis 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

Xu, Wenhao published the artcileDual Nickel- and Photoredox-Catalyzed Reductive Cross-Coupling of Aryl Halides with Dichloromethane via a Radical Process, Formula: C13H10F2, the publication is Organic Letters (2020), 22(21), 8643-8647, database is CAplus and MEDLINE.

The first catalytic strategy to harness a new chloromethane radical from dichloromethane under dual Ni/photoredox catalytic conditions has been developed. Compared with traditional two-electron reductive process associated with metallic reductants, this method via a single-electron approach can proceed under exceptionally mild conditions (visible light, ambient temperature, no strong base) and exhibits complementary reactivity patterns. It affords a broad scope of many functional groups, including alkenyl, which suffers cyclopropanation in previous routes. The diarylmethane-d2 compounds can be readily available with this transformation.

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 C12H6NNaO4, Formula: C13H10F2.

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

Wang, He published the artcileMetal-Free 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (DDQ)-Mediated Cross-Dehydrogenative-Coupling (CDC) of Benzylic C(sp³)-H Bonds and Vinylic C(sp²)-H Bonds: Efficient One-Pot Synthesis of 1H-Indenes, Recommanded Product: Bis(4-fluorophenyl)methane, the publication is Advanced Synthesis & Catalysis (2014), 356(14-15), 3157-3163, database is CAplus.

A novel 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ)-promoted intermol. cross-dehydrogenative coupling reaction of alkyl C(sp³)-H bonds not adjacent to heteroatoms with vinylic C(sp²)-H bonds has been developed. This new strategy provides a new, environmentally friendly, and efficient protocol for the synthesis of polysubstituted 1H-indenes in a single step via a radical-initiated two C(sp²)-C(sp²) and C(sp²)-C(sp³) bond formation process.

Advanced Synthesis & Catalysis 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 C14H21BO2, Recommanded Product: Bis(4-fluorophenyl)methane.

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

He, Chao published the artcileSynthesis of structurally diverse diarylketones through the diarylmethyl sp³ C-H oxidation, Application In Synthesis of 457-68-1, the publication is Tetrahedron Letters (2014), 55(32), 4458-4462, database is CAplus.

Under open-flask conditions, an efficient method to assemble a series of diversely functionalized diarylketones in the presence of com. available NBS has been developed. Yields of up to 99% have been achieved employing diarylmethanes as starting material. Based on ¹⁸O-labeled experiment, the addition of stoichiometric water eventually leads to excellent yields in all carbonylation cases.

Tetrahedron 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 C13H10F2, Application In Synthesis of 457-68-1.

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

Shi, Jiang-Ling published the artcileFe-Promoted Chlorobenzylation of Terminal Alkynes through Benzylic C(sp³)-H Bond Functionalization, SDS of cas: 457-68-1, the publication is Organic Letters (2016), 18(6), 1238-1241, database is CAplus and MEDLINE.

A chlorobenzylation of terminal alkynes through Fe(II)-promoted benzylic C(sp³)-H bond functionalization in the presence of NCS as a chloride source was developed. Compared with previous methods to prepare polysubstituted alkenyl halides, the present procedure provides an efficient alternative with high atom and step economy under mild conditions. The transformation was established to proceed through a single-electron transfer (SET) process with benzyl cations as key intermediates.

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 C15H10O2, SDS of cas: 457-68-1.

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