136902-53-9

Basic information

• Product Name: 5-Bromo-2-(5-bromothiophen-2-yl)pyridine
• Synonyms: 5-Bromo-2-(5-bromothiophen-2-yl)pyridine;2-Bromo-5-(5-bromo-2-pyridyl)thiophene;5-Bromo-2-(5-bromo-2-thienyl)pyridine
• CAS NO: 136902-53-9
• Molecular Formula: C₉H₅Br₂NS
• Molecular Weight: 319.0157
• Mol File: 136902-53-9.mol
• Article Data: 5

Chemical Properties

• Melting Point: 104.0 to 108.0 °C
• Appearance: /
• CAS DataBase Reference: 5-Bromo-2-(5-bromothiophen-2-yl)pyridine(CAS DataBase Reference)
• NIST Chemistry Reference: 5-Bromo-2-(5-bromothiophen-2-yl)pyridine(136902-53-9)
• EPA Substance Registry System: 5-Bromo-2-(5-bromothiophen-2-yl)pyridine(136902-53-9)

Safety Data

• Hazardous Substances Data: 136902-53-9(Hazardous Substances Data)

Usage

General Description

5-Bromo-2-(5-bromothiophen-2-yl)pyridine is a chemical compound with the molecular formula C10H6Br2NS. It is a heterocyclic compound containing both pyridine and thiophene rings with bromine as substituents. This chemical is commonly used as a building block in organic synthesis, specifically in the preparation of pharmaceuticals, agrochemicals, and materials. It also has potential applications in the field of material science and organic electronic devices due to its unique electronic and optical properties. Additionally, it has been studied for its potential anti-cancer and anti-inflammatory properties. However, this compound should be handled with care due to its potential hazards and should only be used by trained professionals in a controlled environment.

Upstream product

• 151073-94-8 5-bromo-2-thienylzinc bromide 
• 223463-13-6 2-iodo-5-bromopyridine 
• 91891-74-6 5-bromo-2-(thiophen-2-yl)pyridine 
• 624-28-2 2,5-dibromopyridine 
• 3141-27-3 2,5-dibromothiophen 

Downstream Products

• 4595-59-9 5-bromopyrimidine 
• 91891-74-6 5-bromo-2-(thiophen-2-yl)pyridine 

Relevant articles and documents

π-Conjugated donor-acceptor copolymers constituted of π-excessive and π-deficient arylene units. Optical and electrochemical properties in relation to CT structure of the polymer

Various π-conjugated copolymers constituted of π-excessive thiophene, selenophene, or furan units (Ar) and π-deficient pyridine or quinoxaline (Ar') units have been prepared in high yields by the following organometallic polycondensation methods: (i) n X-Ar-Ar'-X + n Ni(0)Lm → (Ar-Ar')(n) (X = halogen, Ni(0)-Lm = zerovalent nickel complex), (ii) n X-Ar-X + n Me3Sn-Ar'-SnMe3 → (Ar-Ar')(n) (palladium catalyzed), and (iii) a X-Ar-X + b X-Ar'-X + (a + b)Ni(0)Lm → (Ar)(x)(Ar')(y). Powder X-ray diffraction analysis confirms an alternative structure of a polymer prepared by the method ii. The copolymers have a molecular weight of 5.4 x 103 to 3.3 x 105 and an [η] value of 0.37 to 4.4 dL g-1. π-π* absorption bands of the copolymers generally show red shifts from those of the corresponding homopolymers, (Ar)(n) and (Ar')(n), and the red shifts are accounted for by charge-transferred CT structures of the copolymers. For example, an alternative copolymer of thiophene and 2,3-diphenylquinoxaline gives rise to an absorption band at λ(max) = 603 nm, whereas homopolymers of thiophene and 2,3-diphenylquinoxaline exhibit absorption peaks at about 460 and 440 nm, respectively. The CT copolymers are electrochemically active in both oxidation and reduction regions, showing oxidation (or p-doping) peaks in a range of 0.39 to 1.32 V vs Ag/Ag+ and reduction (or n-doping) peaks in a range of -1.80 to -2.22 V vs Ag/Ag+, respectively. Copolymers of pyridine give unique cyclic voltammograms exhibiting p-undoping peaks at potentials much different (about 2-3 V lower) from the corresponding p-doping potentials, and this large difference between p-doping and p-undoping potentials is explained by an EC mechanism. They are converted into semiconductors by chemical and electrochemical oxidation and reduction. Copolymers of thiophene with pyridine and quinoxaline show the third-order nonlinear optical susceptibility χ((3)) of about 5 x 10-11 esu at the three-photon resonant wavelength, which is 5-7 times larger than those of the corresponding homopolymers and related to the CT structure in the copolymers.

BORON-CONTAINING COMPOUND

PROBLEM TO BE SOLVED: To provide a boron-containing compound suitable as an organic electronic device material such as an organic EL element material and an n-type semiconductor. SOLUTION: The present invention provides a boron-containing compound having a specific structure. SELECTED DRAWING: None COPYRIGHT: (C)2017,JPOandINPIT

Columnar mesophases from half-discoid platinum cyclometalated metallomesogens

A series of liquid crystals have been synthesized and studied based upon mononuclear ortho-platinated rod-like heteroaromatic and 1,3-diketonate ligands. The liquid crystalline properties of these molecules were investigated using polarized light optical