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Chemistry is traditionally divided into organic and inorganic chemistry. Safety of fac-Tris(2-phenylpyridine)iridium. The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 94928-86-6

The reaction of trifluoromethylated tertiary bromides with isonitriles induced by visible light is reported. Defluorination was avoided in a radical process. This method provides an efficient approach to compounds containing a trifluoromethylated quaternary carbon center, most of which show excellent potential to be agrochemicals. In addition, the bromides were prepared from perfluoroisobutylene, which is a waste from industry, after several steps. This reaction shows a feasible transfer of harmful waste into useful compounds.

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Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels.In a patent， COA of Formula: C33H27IrN3, Which mentioned a new discovery about 94928-86-6

Irradiation of a mixture of enamines and alpha-bromo ketones, with a catalytic amount of Ir(ppy)3 by visible light (Lambda= 450 nm), enables the production of various 2,5-diaryl-substituted pyrroles in good to excellent yields. The key intermediates in this reaction have been identified as alkyl radicals, generated from single-electron transfer from the photoexcited Ir(ppy)3? to alpha-bromo ketones, which subsequently react with a broad range of enamines to undergo the Hantzsch reaction rapidly at ambient conditions.

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Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels.In a patent， COA of Formula: C33H27IrN3, Which mentioned a new discovery about 94928-86-6

The invention relates to a compound containing an imidazole spiro ring and an, application of the compound, wherein the compound has the structural. general formula shown in, the chemical formula, (1) as, shown in the chemical formula I, and the compound is good in stability, high in luminous efficiency,long in service life and simple in synthesis. (by machine translation)

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Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

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A novel method for the mild photoredox-mediated tandem radical acylarylation and tandem acylation/semipinacol rearrangement has been developed. The synthesis of highly functionalized ketones bearing all-carbon alpha- or beta-quaternary centers has been achieved using easily available symmetric aromatic carboxylic anhydrides as the acyl radical source. The method allows for a straightforward introduction of the keto functionality and concomitant construction of molecular complexity in a single operation.

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Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

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There is evidence to suggest that increasing the level of saturation (that is, the number of sp3-hybridized carbon atoms) of small molecules can increase their likelihood of success in the drug discovery pipeline1. Owing to their favourable physical properties, alkylamines have become ubiquitous among pharmaceutical agents, small-molecule biological probes and pre-clinical candidates2. Despite their importance, the synthesis of amines is still dominated by two methods: N-alkylation and carbonyl reductive amination3. Therefore, the increasing demand for saturated polar molecules in drug discovery has continued to drive the development of practical catalytic methods for the synthesis of complex alkylamines4?7. In particular, processes that transform accessible feedstocks into sp3-rich architectures provide a strategic advantage in the synthesis of complex alkylamines. Here we report a multicomponent, reductive photocatalytic technology that combines readily available dialkylamines, carbonyls and alkenes to build architecturally complex and functionally diverse tertiary alkylamines in a single step. This olefin-hydroaminoalkylation process involves a visible-light-mediated reduction of in-situ-generated iminium ions to selectively furnish previously inaccessible alkyl-substituted alpha-amino radicals, which subsequently react with alkenes to form C(sp3)?C(sp3) bonds. The operationally straightforward reaction exhibits broad functional-group tolerance, facilitates the synthesis of drug-like amines that are not readily accessible by other methods and is amenable to late-stage functionalization applications, making it of interest in areas such as pharmaceutical and agrochemical research.

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Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels.In a patent， Quality Control of: fac-Tris(2-phenylpyridine)iridium, Which mentioned a new discovery about 94928-86-6

A simple and regiospecific aminohydroxylation of olefins by photoredox catalysis has been developed. N-protected 1-aminopyridinium salts are the key compounds and serve as amidyl radical precursors by the action of Ir photocatalysts, fac-[Ir(ppy)3] and [Ir(ppy)2(dtbbpy)](PF6) (ppy=2-pyridylphenyl, dtbbpy=4,4?-di-tert-butyl-2,2?-bipyridine). The present photocatalytic system allows for synthesis of vicinal aminoalcohol derivatives from olefins with various functional groups under mild reaction conditions with easy handling. Protect ya N: A simple and regiospecific aminohydroxylation of olefins by photoredox catalysis has been developed. N-Protected 1-aminopyridinium salts serve as amidyl radical precursors by the action of Ir photocatalysts, fac-[Ir(ppy)3] and [Ir(ppy)2(dtbbpy)]+ (ppy=2-pyridylphenyl, dtbbpy=4,4?-di-tert-butyl-2,2?-bipyridine). The present photocatalytic system allows easy synthesis of 1,2-aminoalcohol derivatives from olefins with various functionalities.

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Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

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Converting CO2 into fuel or chemical feedstock compounds could in principle reduce fossil fuel consumption and climate-changing CO2 emissions. One strategy aims for electrochemical conversions powered by electricity from renewable sources, but photochemical approaches driven by sunlight are also conceivable. A considerable challenge in both approaches is the development of efficient and selective catalysts, ideally based on cheap and Earth-abundant elements rather than expensive precious metals. Of the molecular photo- and electrocatalysts reported, only a few catalysts are stable and selective for CO2 reduction; moreover, these catalysts produce primarily CO or HCOOH, and catalysts capable of generating even low to moderate yields of highly reduced hydrocarbons remain rare. Here we show that an iron tetraphenylporphyrin complex functionalized with trimethylammonio groups, which is the most efficient and selective molecular electro- catalyst for converting CO2 to CO known, can also catalyse the eight-electron reduction of CO2 to methane upon visible light irradiation at ambient temperature and pressure. We find that the catalytic system, operated in an acetonitrile solution containing a photosensitizer and sacrificial electron donor, operates stably over several days. CO is the main product of the direct CO2 photoreduction reaction, but a two-pot procedure that first reduces CO2 and then reduces CO generates methane with a selectivity of up to 82 per cent and a quantum yield (light-to-product efficiency) of 0.18 per cent. However, we anticipate that the operating principles of our system may aid the development of other molecular catalysts for the production of solar fuels from CO2 under mild conditions.

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Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

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The invention provides three trifluoromethylation of the compound and its preparation method and its application in pesticide. In particular, the invention provides formula 3 as shown by a trifluoro methyl compound; in visible under the photocatalysis, formula 2 shown […] 1 shown in high yield halo trifluoromethanesulfonate states three fluorine methylation reaction for preparing the compound of the method; and the methylation states three fluorine compound in pesticide application. (by machine translation)

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Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

In homogeneous catalysis, the catalyst is in the same phase as the reactant. The number of collisions between reactants and catalyst is at a maximum.In a patent, 94928-86-6, name is fac-Tris(2-phenylpyridine)iridium, introducing its new discovery. Application In Synthesis of fac-Tris(2-phenylpyridine)iridium

Three new xanthone derivatives, 3-(4-(diphenylamino)-9H-carbazol-9-yl)-9H-xanthen-9-one (XanCarDipha), 2-(4-(4-(diphenylamino)-9H-carbazol-9-yl)phenyl)-9H-xanthen-9-one (p-XanCarDipha), and 2-(3-(4-(diphenylamino)-9H-carbazol-9-yl)phenyl)-9H-xanthen-9-one (m-XanCarDipha) as host materials are designed and synthesized, and they are applied to the development of green phosphorescent organic light-emitting diodes (PHOLEDs). Due to the different connection methods of carbazole units and xanthone units of the compounds, the efficiency curves of XanCarDipha exhibited significantly difference compared to other two materials after above three new materials are made into OLED devices as single host in emitting layer (EML). In EML, a PHOLED using 1: 1 p-XanCarDipha: CarTria as double host and doped with 12 wt% tris(2-phenylpyridine) iridium as a guest material can achieve the uppermost external quantum efficiency (EQE) of 20.93%, the uppermost current efficiency (CE) of 77.40 cd A?1, and the uppermost power efficiency (PE) of 93.15 lm W?1. Compared with corresponding highest luminous efficiency of devices using p-XanCarDipha as single host material (16.86%, 62.55 cd A?1 and 42.60 lm W?1), the efficiency of double-host materials has been significantly enhanced. Meanwhile, the glass transition temperatures (Tg) of the three new host materials are all higher than 120 C, indicating that they should have good thermal stability in the device application. This work not only provides a design direction for xanthones, but also demonstrates its superior performance on OLED devices when they combined with another host material.

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Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

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Disclosed are an organic electroluminescent device (organic EL device) which is improved in luminous efficiency, fully secured of driving stability, and simple in constitution and a compound for use therein. The organic electroluminescent device comprises a light-emitting layer disposed between an anode and a cathode piled one upon another on a substrate and the light-emitting layer contains a phosphorescent dopant and a compound for use in an organic electroluminescent device having two or more indolocarbazole skeletons as a host material. An example of the compound having indolocarbazole skeletons for use in the device is expressed by the following formula.

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Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI