Month: November 2022

Yan, Boyu; Zhou, Yutong; Wu, Jieliang; Ran, Maogang; Li, Huihui; Yao, Qiuli published an article in 2021, the title of the article was Catalyst-free reductive hydrogenation or deuteration of aryl-heteroatom bonds induced by light.Recommanded Product: 93-04-9 And the article contains the following content:

A simple and catalyst-free photochem. strategy for the direct reduction of aryl trimethylammonium salts ArNMe3OTf (Ar = biphenyl-4-yl, 2-naphthyl, quinolin-3-yl, etc.), aryl triflates Ar1OTf (Ar1 = biphenyl-3-yl, 1,6-dimethylpyridin-4-yl, benzothiazol-5-yl, etc.), and haloarenes Ar2X (Ar2 = biphenyl-4-yl, 2-naphthyl, quinolin-4-yl, etc.; X = Cl, Br, I) to arenes ArH/Ar1H or deuterium-labeled arenes ArD/Ar1D/Ar2D was described. A broad range of substrate scope was demonstrated with high yields and deuterium incorporations. Radical clock experiments indicate the formation of aryl radical intermediates that can also be trapped by phenols. The experimental process involved the reaction of 2-Methoxynaphthalene(cas: 93-04-9).Recommanded Product: 93-04-9

The Article related to aromatic hydrocarbon preparation, aryl deuterated compound preparation, quaternary arylammonium salt reductive hydrogenation deuteration, triflate aryl reductive hydrogenation deuteration, arylhalide dehalogenation deuteration and other aspects.Recommanded Product: 93-04-9

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On June 12, 2017, Zhu, Lei; Qi, Xiaotian; Li, Yingzi; Duan, Meng; Zou, Lufeng; Bai, Ruopeng; Lan, Yu published an article.Product Details of 1417036-28-2 The title of the article was Ir(III)/Ir(V) or Ir(I)/Ir(III) Catalytic Cycle? Steric-Effect-Controlled Mechanism for the para-C-H Borylation of Arenes. And the article contained the following:

A potential energy surface for iridium-catalyzed C-H-borylation of aromatic compounds was calculated; while bulky phosphine ligands favor Ir(I)-Ir(III) C-H activation, small amine ligands promote formation of triboryl Ir(V) intermediates. D. functional theory method N12 was used to study the mechanism of the [Ir(cod)OH]2/Xyl-MeO-BIPHEP-catalyzed para-selective C-H borylation reaction. The results revealed that the use of a bulky diphosphine ligand such as Xyl-MeO-BIPHEP was unfavorable for the previously proposed iridium(III)/iridium(V) catalytic cycle because it resulted in considerable steric repulsion in the hepta-coordinated iridium(V) intermediate. Inspired by this steric effect, we have proposed a novel iridium(I)/iridium(III)-based catalytic cycle for this transformation and shown that it can be used to account for the exptl. results. The iridium(I)/iridium(III) catalytic cycle induced by this steric effect consists of several steps, including: (i) the oxidative addition of the C-H bond of the substrate to an active iridium(I) boryl complex; (ii) the reductive elimination of a C-B bond; (iii) the oxidative addition of B2pin2 to an iridium(I) hydride complex; and (iv) the reductive elimination of a B-H bond. Notably, the computed regioselectivity of this reaction was consistent with the exptl. observations. The high para-selectivity of this reaction was also explained using structural anal. and a 2D contour model, which revealed that the strong steric repulsion between the diphosphine ligand and the meta-substituents resulted in a higher energy barrier for meta-C-H activation. The experimental process involved the reaction of 2-(3-Methoxy-4-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane(cas: 1417036-28-2).Product Details of 1417036-28-2

The Article related to potential energy surface direct ch borylation arene iridium catalyst, diphosphine diamine iridium complex catalyst arene borylation intermediate geometry, steric effect ligand mechanism direct borylation arene iridium catalyst and other aspects.Product Details of 1417036-28-2

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Hofer, Manuel; Genoux, Alexandre; Kumar, Roopender; Nevado, Cristina published an article in 2017, the title of the article was Gold-Catalyzed Direct Oxidative Arylation with Boron Coupling Partners.Name: 1-Fluoro-2-methoxybenzene And the article contains the following content:

An efficient synthesis of biaryls through a gold-catalyzed oxidative cross-coupling of arenes with strong electron-deprived aryl boronates is presented herein. Regio- and chemocontrol are achieved by the selective activation of these coupling partners by gold at different oxidation states. Under reaction conditions devoid of basic additives or directing groups, the role of acetato ligand as an internal base has been revealed as a key parameter for expanding the reaction scope in these transformations. The experimental process involved the reaction of 1-Fluoro-2-methoxybenzene(cas: 321-28-8).Name: 1-Fluoro-2-methoxybenzene

The Article related to arene aryl boronate direct oxidative arylation cross coupling gold, biaryl preparation mol crystal structure, gold oxidative arylation cross catalyst, arylation, cross-coupling, gold, homogeneous catalysis, reaction mechanisms and other aspects.Name: 1-Fluoro-2-methoxybenzene

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On May 10, 2021, Jiang, Zhong-Tao; Huang, Jiangkun; Zeng, Yaxin; Hu, Fangdong; Xia, Ying published an article.Synthetic Route of 321-28-8 The title of the article was Rhodium Catalyzed Regioselective C-H Allylation of Simple Arenes via C-C Bond Activation of Gem-difluorinated Cyclopropanes. And the article contained the following:

Herein, we report a rhodium catalyzed directing-group free regioselective C-H allylation of simple arenes. Readily available gem-difluorinated cyclopropanes can be employed as highly reactive allyl surrogates via a sequence of C-C and C-F bond activation, providing allyl arene derivatives in good yields with high regioselectivity under mild conditions. The robust methodol. enables facile late-stage functionalization of complex bioactive mols. The high efficiency of this reaction is also demonstrated by the high turnover number (TON, up to 1700) of the rhodium catalyst on gram-scale experiments Preliminary success on kinetic resolution of this transformation is achieved, providing a promising access to enantio-enriched gem-difluorinated cyclopropanes. The experimental process involved the reaction of 1-Fluoro-2-methoxybenzene(cas: 321-28-8).Synthetic Route of 321-28-8

The Article related to arene cyclopropane geminal difluorinated rhodium regioselective allylation catalyst, fluorinated allylarene preparation, c−c bond activation, c−h allylation, directing-group-free, gem-difluorinated cyclopropane, rhodium catalysis and other aspects.Synthetic Route of 321-28-8

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Sharghi, Hashem; Ghaderi, Iman; Doroodmand, Mohammad Mahdi published an article in 2017, the title of the article was Eco-compatible three component strategies for C-S bond formation in thioether and S-aryl-carbamodithioate compounds catalyzed by copper(II) nanoparticles supported on modified AlPO4.Safety of Benzyl(4-bromophenyl)sulfane And the article contains the following content:

One-pot and three components C-S bond formation reactions in thioethers ArCH(X)SAr1 (Ar = C6H5, 4-BrC6H4, 4-H2C=CHC6H4; X = H, CH3; Ar1 = C6H5, 4-CH3C6H4, 4-ClC6H4, etc.) and S-aryl-carbamodithioates YC(S)SAr1 (Y = morpholinyl, piperidinyl, (diethylamino), etc.) have been catalyzed by a copper heterogeneous nano-catalyst supported on modified AlPO4 under different reaction conditions. The above-mentioned nano-catalyst has been characterized by various techniques such as SEM, TEM, AFM, XRD, FT-IR, UV-Vis, CV, BET, TGA, ICP and XPS spectrometry and its particle size was estimated to be between 60-110 nm. Finally, the reusability of the catalyst up to ten cycles without any significant leaching is one of the outstanding properties of the catalyst. The experimental process involved the reaction of Benzyl(4-bromophenyl)sulfane(cas: 53136-21-3).Safety of Benzyl(4-bromophenyl)sulfane

The Article related to thioether preparation green chem, thiourea arylhalide benzyl halide three component copper nanocatalyst, dithiocarbamate aryl preparation green chem, secondary amine carbon disulfide aryliodide three component copper nanocatalyst and other aspects.Safety of Benzyl(4-bromophenyl)sulfane

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On February 25, 2021, de Souza, Wanderson C.; Matsuo, Bianca T.; Matos, Priscilla M.; Correia, Jose Tiago M.; Santos, Marilia S.; Koenig, Burkhard; Paixao, Marcio W. published an article.Product Details of 157869-15-3 The title of the article was Photocatalyzed Intramolecular [2+2] Cycloaddition of N-Alkyl-N-(2-(1-arylvinyl)aryl)cinnamamides. And the article contained the following:

N-Alkyl-N-(2-(1-arylvinyl)aryl)cinnamamides were converted into natural product inspired scaffolds via iridium photocatalyzed intramol. [2+2] photocycloaddition The protocol had a broad substrate scope, while operating under mild reaction conditions. Tethering four components forming a trisubstituted cyclobutane core builds rapidly high mol. complexity. This approach allowed the design and synthesis of a variety of tetrahydrocyclobuta[c]quinolin-3(1H)-ones, in yields ranging between 20-99%, and with excellent regio- and diastereoselectivity. Moreover, it was demonstrated that the intramol. [2+2]-cycloaddition of 1,7-enynes-after fragmentation of the cyclobutane ring-leads to enyne-metathesis-like products. The experimental process involved the reaction of 2-((4-Methoxyphenyl)ethynyl)aniline(cas: 157869-15-3).Product Details of 157869-15-3

The Article related to alkyl arylvinyl arylcinnamamide preparation iridium diastereoselective regioselective photochem cycloaddition, diaryl alkyltetrahydrocyclobutaquinolinone preparation, catalysis, cycloaddition, dienes, energy transfer, photocatalysis and other aspects.Product Details of 157869-15-3

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem