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21578-58-5

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21578-58-5 Usage

Synthesis Reference(s)

Synthesis, p. 864, 1977 DOI: 10.1055/s-1977-24609

Check Digit Verification of cas no

The CAS Registry Mumber 21578-58-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,5,7 and 8 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 21578-58:
(7*2)+(6*1)+(5*5)+(4*7)+(3*8)+(2*5)+(1*8)=115
115 % 10 = 5
So 21578-58-5 is a valid CAS Registry Number.
InChI:InChI=1/C13H11N3/c1-2-6-10(7-3-1)14-13-15-11-8-4-5-9-12(11)16-13/h1-9H,(H2,14,15,16)

21578-58-5SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name N-phenyl-1H-benzimidazol-2-amine

1.2 Other means of identification

Product number -
Other names 2-phenylaminobenzimidazole

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:21578-58-5 SDS

21578-58-5Relevant articles and documents

A one-pot method for the synthesis of 2-aminobenzimidazoles and related heterocycles

Cee, Victor J.,Downing, Nicholas S.

, p. 3747 - 3750 (2006)

A rapid and efficient one-pot method for the synthesis of 2-aminobenzimidazoles and related heterocycles is described. The reaction is mediated by a polymer-supported carbodiimide, which simplifies product isolation. The scope and limitations of this method are described.

Microwave-assisted hydrogen peroxide-mediated synthesis of benzoxazoles and related heterocycles via cyclodesulfurization

Kadagathur, Manasa,Sigalapalli, Dilep Kumar,Patra, Sandip,Tangellamudi, Neelima D.

supporting information, p. 2213 - 2224 (2021/05/26)

A novel approach has been developed to construct benzoxazoles and similar N- and S-containing heterocycles from their corresponding isothiocyanates and o-substituted anilines via cyclodesulfurization. The reaction was found to proceed via in situ formatio

Potassium Periodate Mediated Oxidative Cyclodesulfurization toward Benzofused Nitrogen Heterocycles

Duangkamol, Chuthamat,Pattarawarapan, Mookda,Phakhodee, Wong

, p. 1981 - 1990 (2020/07/03)

A convenient oxidative cyclodesulfurization method toward the synthesis of benzofused nitrogen heterocycles using inexpensive and readily available potassium periodate as an oxidant was developed. Upon treating isothiocyanates with ortho -substituted anilines bearing N, N -, N, O -, and N, S -bis-nucleophiles, followed by an intramolecular cyclization of the in situ generated monothioureas, substituted 2-aminobenzazole series were rapidly accessible in good to excellent yields. The protocol can accommodate various substituents on both substrates while allowing more efficient, greener, and operational simpler process relative to other oxidative coupling reactions. Tetracyclic quinazolinone derivatives were also afforded in high yields in a single preparative step and chromatography-free.

BENZIMIDAZOLO[1,2-A]BENZIMIDAZOLE CARRYING BENZIMIDAZOLO[1,2-A]BENZIMIDAZOLYL GROUPS, CARBAZOLYL GROUPS, BENZOFURANE GROUPS OR BENZOTHIOPHENE GROUPS FOR ORGANIC LIGHT EMITTING DIODES

-

Page/Page column 279, (2017/05/07)

Benzimidazolo[1,2-a]benzimidazole carrying benzimidazolo[1,2-a]benzimidazolylyl groups, carbazolyl groups, dibenzofurane groups, dibenzothiophene groups, fluorenyl groups or dibenzosilolyl groups, an organic electronic device, comprising said benzimidazolo[1,2-a]benzimidazole carrying groups, a charge transport layer, charge blocking layer/exciton blocking layer, or an emitting layer comprising said benzimidazolo[1,2-a]benzimidazole carrying groups, an apparatus selected from the group consisting of stationary visual display units; mobile visual display units; illumination units; keyboards; items of clothing; furniture; wallpaper, comprising said organic electronic device, or said charge transport layer, said charge/exciton blocking layer, or said emitting layer, the use of said benzimidazolo[1,2-a]benzimidazole carrying groups for organic electroluminescent devices, electrophotographic photoreceptors, photoelectric converters, organic solar cells, switching elements, organic light emitting field effect transistors, image sensors or dye lasers, and a process for the preparation of said benzimidazolo[1,2-a]benzimidazole carrying groups.

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