111770-86-6

Basic information

• Product Name: 5-BROMO-2-ETHYNYLPYRIDINE
• Synonyms: 5-BROMO-2-ETHYNYLPYRIDINE;2-Ethynyl-5-bromopyridine;Pyridine,5-bromo-2-ethynyl-
• CAS NO: 111770-86-6
• Molecular Formula: C₇H₄BrN
• Molecular Weight: 182.02
• Product Categories: Pyridine;Pyridines
• Mol File: 111770-86-6.mol
• Article Data: 10

Chemical Properties

• Melting Point: 84-86℃
• Boiling Point: 212℃
• Flash Point: 82℃
• Appearance: Light yellow liquid
• Density: 1.60
• Vapor Pressure: 0.256mmHg at 25°C
• Refractive Index: 1.609
• Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C
• PKA: -0.09±0.22(Predicted)
• CAS DataBase Reference: 5-BROMO-2-ETHYNYLPYRIDINE(CAS DataBase Reference)
• NIST Chemistry Reference: 5-BROMO-2-ETHYNYLPYRIDINE(111770-86-6)
• EPA Substance Registry System: 5-BROMO-2-ETHYNYLPYRIDINE(111770-86-6)

Safety Data

• Hazardous Substances Data: 111770-86-6(Hazardous Substances Data)

Usage

Uses

5-Bromo-2-ethynylpyridine is used in the synthesis of anti-infective agents for the treatment of infectious diseases.

InChI:InChI=1/C7H4BrN/c1-2-7-4-3-6(8)5-9-7/h1,3-5H

Upstream product

• 223463-13-6 2-iodo-5-bromopyridine 
• 1066-54-2 trimethylsilylacetylene 
• 866929-82-0 2-(tert-butyldimethylsilylethynyl)-5-bromopyridine 
• 111770-80-0 3-bromo-6-(trimethylsilylethynyl)pyridine 

Downstream Products

• 199620-14-9 chromium⁽⁰⁾ hexacarbonyl 
• 14040-11-0 tungsten hexacarbonyl 
• 1275580-62-5 η5-cyclopentadienyl(2-(5-bromopyridyl)ethynyl)(triphenylphosphane)nickel(II) 
• 1488359-58-5 2-(1-(2-phenylethyl)-1H-1,2,3-triazol-4-yl)-5-bromopyridine 
• 1488359-60-9 C₅₅H₅₃BrN₅O₄Pt⁽¹⁺⁾*C₇H₇O₃S^(1-) 
• 690265-82-8 5-bromo-2-{4-[2-(4-methyl-piperidin-1-yl)-ethoxy]-phenylethynyl}-pyridine 
• 38749-90-5 5-bromo-2-ethyl-pyridine 

Relevant articles and documents

Palladium nanoparticles catalyzed Sonogashira reactions for the one-pot synthesis of symmetrical and unsymmetrical diarylacetylenes

A variety of symmetrical and unsymmetrical diarylacetylenes are synthesized by ligand-free palladium nanoparticles catalyzed copper-free and amine-free Sonogashira cross-coupling reactions between aryl iodides and trimethylsilylacetylene (TMSA) under mild reaction conditions.

N -Heterocyclic donor- and acceptor-type ligands based on 2-(1 H -[1,2,3]Triazol-4-yl)pyridines and their ruthenium(II) complexes

New 2-(1H-[1,2,3]triazol-4-yl)pyridine bidentate ligands were synthesized as bipyridine analogs, whereas different phenylacetylene moieties of donor and acceptor nature were attached at the 5-position of the pyridine unit. The latter moieties featured a crucial influence on the electronic properties of those ligands. The N-heterocyclic ligands were coordinated to ruthenium(II) metal ions by using a bis(4,4′-dimethyl-2,2′-bipyridine)ruthenium(II) precursor. The donor or acceptor capability of the 2-(1H-[1,2,3]triazol-4-yl) pyridine ligands determined the quantum yield of the resulting ruthenium(II) complexes remarkably. Separately, 2-([1,2,3]triazol-4-yl)pyridine ligands are known to be potential quenchers, but using these new ligand systems led to room temperature emission of the corresponding ruthenium(II) complexes. The compounds have been fully characterized by elemental analysis, high-resolution ESI mass spectrometry, 1H and 13C NMR spectroscopy, and X-ray crystallography. Theoretical calculations for two ruthenium(II) complexes bearing a donor and acceptor unit, respectively, were performed to gain a deeper understanding of the photophysical behavior.

ANTIMICROBIAL INDOLINE COMPOUNDS FOR TREATMENT OF BACTERIAL INFECTIONS

The present invention provides indoline heterocyclic compounds of the following formula I: or pharmaceutically acceptable salts, prodrugs, solvates, or hydrates thereof useful as antibacterial agents, pharmaceutical compositions containing them, methods f