Chi, Zhuomin et al. published their research in Chinese Chemical Letters in 2022 | CAS: 83515-06-4

5-Bromo-2-phenyl-1H-indole (cas: 83515-06-4) belongs to indole derivatives. The indole subunit is an almost ubiquitous component of biologically active natural products, and its study has been the focus of research for decades. Indole plays a fundamental role for QS in E. coli, being one of the signal molecules responsible for the transcription of a variety of genes (gabT, and tnaB ASTD). Safety of 5-Bromo-2-phenyl-1H-indole

Dearomative spirocyclization via visible-light-induced reductive hydroarylation of non-activated arenes was written by Chi, Zhuomin;Gao, Yuzhen;Yang, Lei;Zhou, Chunlin;Zhang, Meng;Cheng, Peiming;Li, Gang. And the article was included in Chinese Chemical Letters in 2022.Safety of 5-Bromo-2-phenyl-1H-indole This article mentions the following:

A visible-light-induced spirocyclizative hydroarylation via reductive dearomatization of a series of non-activated arenes including 2-Ph indoles and naphthalene derivatives under mild conditions was described. An intriguing chemoselective dearomative hydroarylation of 2-Ph indoles was presented. This dearomative hydroarylation protocol rapidly delivered valuable spirocycles with carbon-carbon double bonds from readily accessible aromatic precursors in a single step. In the experiment, the researchers used many compounds, for example, 5-Bromo-2-phenyl-1H-indole (cas: 83515-06-4Safety of 5-Bromo-2-phenyl-1H-indole).

5-Bromo-2-phenyl-1H-indole (cas: 83515-06-4) belongs to indole derivatives. The indole subunit is an almost ubiquitous component of biologically active natural products, and its study has been the focus of research for decades. Indole plays a fundamental role for QS in E. coli, being one of the signal molecules responsible for the transcription of a variety of genes (gabT, and tnaB ASTD). Safety of 5-Bromo-2-phenyl-1H-indole

Referemce:
Indole alkaloid derivatives as building blocks of natural products from聽Bacillus thuringiensis聽and聽Bacillus velezensis聽and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

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The use of water as reaction medium in the heterogeneous activation of C-H bonds has numerous advantages in terms of environmental benign, safety and cost efficiency impact. However, it is severely hampered because the reactants are difficult to dissolve in water and contact with the active sites of heterogeneous catalysts. Herein, we choose perfluoroalkane-functionalized mesoporous metal-organic framework (MOF) NU-1000 as a hydrophobic platform to encapsulate ultrafine palladium nanoparticles (Pd NPs) for C-H activation in water. The resultant Pd NPs stabilized by the perfluoroalkane exhibited high activity and regioselectivity in the direct C-H arylation of indoles in water. The introduction of perfluoroalkane chains into the mesoporous pores of NU-1000 provides hydrophobic surfaces to facilitate access of the reactants to the active sites to guarantee the high activity.

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Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

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A compound (I) of the present invention, which has an EP1 receptor antagonism: [wherein A represents a benzene ring or the like; Y1 represents a C1-6 alkylene group; Y2 represents a single bond or the like; R1 represents a hydrogen atom, a C1-6 alkyl group or the like; R2 represents a phenyl group which may have a substituent, a 5-membered aromatic heterocyclic ring which may have a substituent, a 6-membered aromatic heterocyclic ring which may have a substituent or the like; R3 represents a halogen atom, a C1-6 alkoxy group or the like; R4 represents a hydrogen atom or the like; and R5 represents a hydrogen atom or the like] or a pharmaceutically acceptable salt thereof is provided. Furthermore, the compound (I) of the present invention can be used as an agent for treating or preventing LUTS, in particular, various symptoms of OABs.

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Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

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A concise synthesis of pyrazolo[1,5-a]indole derivatives by copper-catalyzed aerobic oxygenation and cyclization of indoles with oxime acetates is described. This protocol represents an elegant example of N-1, C-2, and C-3 tri-functionalization of indoles in one-pot. Mechanistic studies indicate the reaction proceeds through a radical procedure. Oximes as an internal oxidant have been demonstrated to be a driver to initiate aerobic oxidation, which provides a new oxidative pattern for C-H functionalization even with high atom- and step-economy.

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Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

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The invention relates to a can be used as pharmaceutical intermediates shown in the following formula (III) indole compound synthesis method, the method comprises in a solvent and an inert gas atmosphere, the catalyst, nitrogen-containing ligand and the presence of acid promoter, the following formula (I) compound with the following formula (II) compound generating reaction, after-treatment after the reaction, so as to obtain states the type (III) compound, Wherein R1 Selected from H or halogen; R2 Is selected from H, C1 – C6 Alkyl, C1 – C6 Alkoxy or halogen, or R2 With the substituted phenyl together form a naphthyl. A method through a suitable substrate, catalyst, nitrogen-containing ligand, and the solvent of the acid promoter such as coordination with the comprehensive selection, thereby expanding the range of the substrate, and can be good yields aryl substituted indole compound, thus in the field of organic chemical synthesis has good application prospect and research value, for this kind of compound synthesis provides new method. (by machine translation)

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Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

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An unprecedented palladium/copper cocatalyzed coupling reaction of indoles with simple aroyl hydrazides has been developed under aerobic conditions. A range of aroyl hydrazides underwent palladium/copper cocatalyzed oxidative arylation with indoles open to air in a 1:1 mixture of dimethyl sulfoxide and nitromethane to give structurally diverse 2-arylindoles or 3-arylindoles in moderate to good yields. The reaction well tolerates a wide variety of functional groups such as alkoxy, halo, ester.

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Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

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An efficient three-component benzoselenophenes formation has been developed from substituted indoles, acetophenones, and selenium powder under metal-free conditions. 2-Aryl indoles played an important role to promote benzoselenophene formation from acetophenone derivatives and selenium powder. One C-C and two C-Se bonds were selectively formed to provide 40 new benzoselenophenes in good yields.

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Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

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A copper(I)-catalyzed procedure for the synthesis of benzo[b]heterocycles. This protocol can be used to synthesize a variety of 2-arylbenzo[b]furans and indoles in good to excellent yields. This method can tolerate a variety of functional groups, does not require the use of expensive additives and is palladium-free.

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Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

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An efficient one-pot copper(I)- and palladium-catalyzed synthesis of indoles from N-(2-iodo-aryl)formamides and phenylAacetylene is described. The cascade reaction comprises a Sonogashira cross-coupling, an intramolecular C-N bond formation, and hydrolysis of the intermediate indole-1-carbaldehyde promoted by the same catalyst and base systems.

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Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

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PROBLEM TO BE SOLVED: hole injection and transport capacity, and excellent in emitting the compd. indolecarboxylic compd. including organic layer, light emitting efficiency, drive voltage, the lifetime of the characteristics of the organic electroluminescence element. SOLUTION: represented by the following formula, indolecarboxylic compound, and the compound containing one or more of the organic layer 1, an organic electroluminescent element. [R 1 and R 2 are each independently H, D, such as alkyl; Y 3-Y 8 the CR 4; R 4 are each independently H, D, alkyl, aryl or; Z 1-Z 6 each independently N, AR 6; AR 6 A and B are each independently an alkyl, cycloalkyl, aryl, heteroaryl, etc.; p and q are each independently an integer of 0-3 ; r and s are each independently an integer; r+s ?1] selected drawing 0-5:no (by machine translation)

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Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles