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19867-89-1

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19867-89-1 Usage

General Description

2-(4-chloro-phenyl)-1H-pyrrole is a chemical compound with a molecular formula C10H8ClN. It is a pyrrole derivative that contains a chloro-substituted phenyl group. 2-(4-CHLORO-PHENYL)-1H-PYRROLE is commonly used in the field of organic synthesis and medicinal chemistry, where it serves as a building block for the production of various pharmaceuticals and agrochemicals. It has also been studied for its potential applications in materials science and as a precursor for the synthesis of other heterocyclic compounds. The presence of a chloro-substituted phenyl group in its structure makes it useful for the preparation of diverse chemical compounds with specific properties and applications.

Check Digit Verification of cas no

The CAS Registry Mumber 19867-89-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,8,6 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 19867-89:
(7*1)+(6*9)+(5*8)+(4*6)+(3*7)+(2*8)+(1*9)=171
171 % 10 = 1
So 19867-89-1 is a valid CAS Registry Number.
InChI:InChI=1/C10H8ClN/c11-9-5-3-8(4-6-9)10-2-1-7-12-10/h1-7,12H

19867-89-1Relevant articles and documents

New synthesis of 2-aryl- and 2-hetarylpyrroles from 1-propargylbenzotriazole

Katritzky,Li,Gordeev

, p. 93 - 96 (1994)

1-(3-Lithiopropargyl)benzotriazole reacts with N-tosylarylimines to give adducts which undergo cycloelimination on treatment with ethanolic sodium hydroxide to afford 2-aryl- and 2-hetarylpyrroles in 45-60% yields. Treatment of 1-(1,3-dilithiopropargyl)benzotriazole successively with 1 equivalent of an alkyl halide followed by N-tosyl(1-naphthyl)imine and then ethanolic sodium hydroxide gives the corresponding 5-alkyl-2-(1-naphthyl)pyrroles in 43-56% yields.

σ-Bond initiated generation of aryl radicals from aryl diazonium salts

Chan, Bun,McErlean, Christopher S. P.,Nashar, Philippe E.,Tatunashvili, Elene

supporting information, p. 1812 - 1819 (2020/03/17)

σ-Bond nucleophiles and molecular oxygen transform aryl diazonium salts into aryl radicals. Experimental and computational studies show that Hantzsch esters transfer hydride to aryl diazonium species, and that oxygen initiates radical fragmentation of the diazene intermediate to produce aryl radicals. The operational simplicity of this addition-fragmentation process for the generation of aryl radicals, by a polar-radical crossover mechanism, has been illustrated in a variety of bond-forming reactions.

Synthesis of 5-Arylpyrrole-2-carboxylic Acids as Key Intermediates for NBD Series HIV-1 Entry Inhibitors

Belov, Dmitry S.,Ivanov, Vladimir N.,Curreli, Francesca,Kurkin, Alexander V.,Altieri, Andrea,Debnath, Asim K.

, p. 3692 - 3699 (2017/08/15)

5-Arylpyrrole-2-carboxylic acids are important key intermediates in the synthesis of HIV-1 entry inhibitors (such as NBD-11021 and NBD-14010). Here we present a general method for the synthesis of some 5-arylpyrrole-2-carboxylic acids in three steps starting from pyrrole. By this method, the compounds could be prepared on gram scale and without chromatographic purification.

Chromoselective Photocatalysis: Controlled Bond Activation through Light-Color Regulation of Redox Potentials

Ghosh, Indrajit,K?nig, Burkhard

supporting information, p. 7676 - 7679 (2016/07/07)

Catalysts that can be regulated in terms of activity and selectivity by external stimuli may allow the efficient multistep synthesis of complex molecules and pharmaceuticals. Herein, we report the light-color regulation of the redox potential of a photocatalyst to control the activation of chemical bonds. Light-color control of the redox power of a photocatalyst introduces a new selectivity parameter to photoredox catalysis: Instead of changing the catalyst or ligand, alteration of the color of the visible-light irradiation adjusts the selectivity in catalytic transformations. By using this principle, the selective activation of aryl–halide bonds for C?H arylation and the sequential conversion of functional groups with different reduction potentials is possible by simply applying different colors of light for excitation of the photocatalyst.

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