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Name: [Ir(dtbbpy)(ppy)2]PF6. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: [Ir(dtbbpy)(ppy)2]PF6, is researched, Molecular C40H40F6IrN4P, CAS is 676525-77-2, about The Reaction of Tertiary Anilines with Maleimides under Visible Light Redox Catalysis. Author is Ju, Xuhui; Li, Dianjun; Li, Weifei; Yu, Wei; Bian, Fengling.

Tertiary anilines can be prompted to react with N-aryl- and N-benzylmaleimides to form tetrahydroquinoline products under photocatalysis using visible light irradiation, the ruthenium or iridium complexes Ru(bpy)3Cl2 or Ir(ppy)2(dtbbpy)PF6 as catalyst, and air as terminal oxidant.

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Reference:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Quality Control of [Ir(dtbbpy)(ppy)2]PF6. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: [Ir(dtbbpy)(ppy)2]PF6, is researched, Molecular C40H40F6IrN4P, CAS is 676525-77-2, about Ynamide SMILESs Rearrangement Triggered by Visible-Light-Mediated Regioselective Ketyl-Ynamide Coupling: Rapid Access to Functionalized Indoles and Isoquinolines. Author is Wang, Ze-Shu; Chen, Yang-Bo; Zhang, Hao-Wen; Sun, Zhou; Zhu, Chunyin; Ye, Long-Wu.

Here, a novel and practical radical SMILESs rearrangement triggered by photoredox-catalyzed regioselective ketyl-ynamide coupling is reported, which represents the first radical SMILESs rearrangement of ynamides. This method enables facile access to a variety of valuable 2-benzhydrylindoles with broad substrate scope in generally good yields under mild reaction conditions. In addition, this chem. can also be extended to the divergent synthesis of versatile 3-benzhydrylisoquinolines through a similar ketyl-ynamide coupling and radical SMILESs rearrangement, followed by dehydrogenative oxidation Moreover, such an ynamide SMILESs rearrangement initiated by intermol. photoredox catalysis via addition of external radical sources is also achieved. By control experiments, the reaction was shown to proceed via key ketyl radical and α-imino carbon radical intermediates.

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Reference:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: [Ir(dtbbpy)(ppy)2]PF6, is researched, Molecular C40H40F6IrN4P, CAS is 676525-77-2, about The Tandem Photoredox Catalysis Mechanism of [Ir(ppy)2(dtb-bpy)]+ Enabling Access to Energy Demanding Organic Substrates, the main research direction is photoredox catalyst photoinduced electron transfer dehalogenation.Application of 676525-77-2.

We report the discovery of a tandem catalytic process to reduce energy demanding substrates, using the [Ir(ppy)2(dtb-bpy)]+ (1+) photocatalyst. The immediate products of photoinitiated electron transfer (PET) between 1+ and triethylamine (TEA) undergo subsequent reactions to generate a previously unknown, highly reducing species (2). Formation of 2 occurs via reduction and semisatn. of the ancillary dtb-bpy ligand, where the TEA radical cation serves as an effective hydrogen atom donor, confirmed by NMR, mass spectrometry, and deuterium labeling experiments Steady-state and time-resolved luminescence and absorption studies reveal that upon irradiation, 2 undergoes electron transfer or proton-coupled electron transfer (PCET) with a representative acceptor (N-(diphenylmethylene)-1-phenylmethanamine; S). Turnover of this new photocatalytic cycle occurs along with the reformation of 1+. We rationalize our observations by proposing the first example of a mechanistic pathway where two distinct yet interconnected photoredox cycles provide access to an extended reduction potential window capable of engaging a wide range of energy demanding and synthetically relevant organic substrates including aryl halides.

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Reference:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 676525-77-2, is researched, SMILESS is [F-][P+5]([F-])([F-])([F-])([F-])[F-].CC(C)(C1=CC=[N]([Ir+3]23([C-]4=CC=CC=C4C5=CC=CC=[N]25)([C-]6=CC=CC=C6C7=CC=CC=[N]37)[N]8=CC=C(C(C)(C)C)C=C98)C9=C1)C, Molecular C40H40F6IrN4PJournal, Article, Research Support, Non-U.S. Gov’t, Organic Letters called Photocatalytic and Chemoselective Transfer Hydrogenation of Diarylimines in Batch and Continuous Flow, Author is van As, Dean J.; Connell, Timothy U.; Brzozowski, Martin; Scully, Andrew D.; Polyzos, Anastasios, the main research direction is diarylalkylamine preparation; diarylimine transfer hydrogenation iridium photocatalyst continuous flow.Related Products of 676525-77-2.

A visible-light photocalytic method for the chemoselective transfer hydrogenation of imines in batch and continuous flow is described. The reaction utilizes Et3N as both hydrogen source and single electron donor, enabling the selective reduction of imines derived from diarylketimines containing other reducible functional groups including nitriles, halides, esters, and ketones. The dual role of Et3N was confirmed by fluorescence quenching measurements, transient absorption spectroscopy and deuterium labeling studies. Continuous flow processing facilitates straightforward scale-up of the reaction.

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Reference:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Synthetic Route of C40H40F6IrN4P. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: [Ir(dtbbpy)(ppy)2]PF6, is researched, Molecular C40H40F6IrN4P, CAS is 676525-77-2, about Palladium-Catalyzed Visible-Light-Driven Carboxylation of Aryl and Alkenyl Triflates by Using Photoredox Catalysts. Author is Shimomaki, Katsuya; Nakajima, Tomoya; Caner, Joaquim; Toriumi, Naoyuki; Iwasawa, Nobuharu.

A visible-light-driven carboxylation of aryl and alkenyl triflates with CO2 is developed by using a combination of Pd and photoredox catalysts. This reaction proceeds under mild conditions and can be applied to a wide range of substrates including acyclic alkenyl triflates.

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Reference:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Generation of Alkoxyl Radicals by Photoredox Catalysis Enables Selective C(sp3)-H Functionalization under Mild Reaction Conditions, published in 2016, which mentions a compound: 676525-77-2, Name is [Ir(dtbbpy)(ppy)2]PF6, Molecular C40H40F6IrN4P, Computed Properties of C40H40F6IrN4P.

Reported herein is the first visible-light-induced formation of alkoxyl radicals from N-(alkoxy)phthalimides, and the Hantzsch ester as the reductant is crucial for the reaction. The selective hydrogen atom abstraction by the alkoxyl radical enables C(sp3)-H allylation and alkenylation reactions under mild reaction conditions at room temperature Broad substrate variations, including a structurally complex steroid, undergo the C(sp3)-H functionalization reaction effectively with high regioselectivity and chemoselectivity. The synthesis of the target compounds was achieved using 2-[(phenylsulfonyl)methyl]-2-propenoic acid Et ester as a starting material in a reaction with 2-[2-[(4-methylphenyl)methoxy]ethoxy]-1H-isoindole-1,3(2H)-dione [i.e., cyclic N-(alkoxy)imide, phthalimide] derivatives Under optimized conditions tris[2-(2-pyridinyl-κN)phenyl-κC]iridium(1+) um(1+) hexafluorophosphate(1-) [i.e., fac-Ir(ppy)3] was used as a catalyst. The title compounds thus formed included 2-[[(2E)-3-phenyl-2-propen-1-yl]oxy]ethanol derivatives, γ-(2-hydroxyethoxy)-α-(methlyene)benzenebutanoic acid esters,.

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Reference:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: [Ir(dtbbpy)(ppy)2]PF6, is researched, Molecular C40H40F6IrN4P, CAS is 676525-77-2, about Discovery of an α-Amino C-H Arylation Reaction Using the Strategy of Accelerated Serendipity, the main research direction is photoredox catalyst arylation tertiary amine cyano aromatic; serendipitous preparation benzylic amine.HPLC of Formula: 676525-77-2.

Serendipity has long been a welcome yet elusive phenomenon in the advancement of chem. We sought to exploit serendipity as a means of rapidly identifying unanticipated chem. transformations. By using a high-throughput, automated workflow and evaluating a large number of random reactions, we have discovered a photoredox-catalyzed C-H arylation reaction for the construction of benzylic amines, an important structural motif within pharmaceutical compounds that is not readily accessed via simple substrates. The mechanism directly couples tertiary amines with cyano aromatics by using mild and operationally trivial conditions.

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Reference:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Formula: C40H40F6IrN4P. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: [Ir(dtbbpy)(ppy)2]PF6, is researched, Molecular C40H40F6IrN4P, CAS is 676525-77-2, about Dual Photoredox and Gold Catalysis: Intermolecular Multicomponent Oxyarylation of Alkenes. Author is Hopkinson, Matthew N.; Sahoo, Basudev; Glorius, Frank.

Intermol. three-component oxyarylation reactions of simple alkenes R1CH:CH2 [R1 = n-C6H13, 4-BrC6H4OCH2CH2, PhCO2(CH2)4, 2-(phthalimido)ethyl, etc.] with alcs. R2OH (R2 = Me, Et, i-Pr) or acetic acid and a arene source have been developed using a dual gold and photoredox catalytic system. Inexpensive organic dyes could be employed as the photocatalyst using aryldiazonium salts ArN2+BF4 (Ar = Ph, 4-MeC6H4, 4-BrC6H4, etc.), while the combination of gold and iridium catalysts allowed for diaryliodonium compounds Ar2I+BF4- (Ar = Ph, 2-MeC6H4, 3-EtO2CC6H4, etc.) to be employed as the source of the arene coupling partner. In both cases, arylated ethers R1CH(OR2)CH2Ar were generated under remarkably mild conditions using readily accessible visible light sources.

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Reference:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Wallentin, Carl-Johan; Nguyen, John D.; Finkbeiner, Peter; Stephenson, Corey R. J. researched the compound: [Ir(dtbbpy)(ppy)2]PF6( cas:676525-77-2 ).Safety of [Ir(dtbbpy)(ppy)2]PF6.They published the article 《Visible Light-Mediated Atom Transfer Radical Addition via Oxidative and Reductive Quenching of Photocatalysts》 about this compound( cas:676525-77-2 ) in Journal of the American Chemical Society. Keywords: visible atom transfer radical addition oxidative reductive quenching photocatalyst. We’ll tell you more about this compound (cas:676525-77-2).

Herein, the development of visible light-mediated atom transfer radical addition (ATRA) of haloalkanes onto alkenes and alkynes using the reductive and oxidative quenching of [Ir{dF(CF3)ppy}2(dtbbpy)]PF6 and [Ru(bpy)3]Cl2 is presented. Initial studies indicated that the oxidative quenching of photocatalysts could effectively be used for ATRA, and since that report, the protocol was expanded by broadening the scope of the reaction in terms of the photocatalysts, substrates, and solvents. Further modifications of the reaction conditions allowed for the efficient ATRA of perfluoroalkyl iodides onto alkenes and alkynes using the reductive quenching cycle of [Ru(bpy)3]Cl2 with sodium ascorbate as the sacrificial electron donor. These results signify the complementary nature of the oxidative and reductive quenching pathways of photocatalysts and the ability to predictably direct reaction outcome through modification of the reaction conditions.

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Reference:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Modulation of iridium(iii) phosphorescence via photochromic ligands: a density functional theory study, published in 2010-11-07, which mentions a compound: 676525-77-2, mainly applied to modulation iridium phosphorescence photochromic ligand density functional theory, Recommanded Product: [Ir(dtbbpy)(ppy)2]PF6.

The photochromic Ir(iii) complex (Py-BTE)2Ir(acac) synthesized by Tan et al. [W. Tan et al., Organic Lett. 2009, 11, 161-164] showed distinct photo-reactivity and photo-controllable phosphorescence. The authors here present a d. functional theory study on the (Py-BTE)2Ir(acac) complex to explore the mechanism at the mol. level and to help further design of photochromic Ir(iii) complexes with the desirable properties. The hybrid functional PBE0, with 25% Hartree-Fock exchange, is found to give an optimal structure compared with x-ray crystallog. data. The absorption bands are well reproduced by using time-dependent d. functional theory calculations, lending the possibility to assign the metal-to-ligand and intra-ligand charge transfer transitions. The radiative and nonradiative deactivation rate constants, kr and knr, are rationalized for both the open-ring and closed-ring forms of the complex. The very large knr and small kr make the closed-ring form of the complex nonemissive. The triplet reactivity of the Py-BTE ligand is also studied by performing d. functional theory calculations on the potential energy surfaces of the ground state and the lowest triplet state.

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Reference:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”