13484-50-9

Basic information

• Product Name: tetrachloropyrazine
• Synonyms: Pyrazine, tetrachloro-; Tetrachloropyrazine
• CAS NO: 13484-50-9
• Molecular Formula: C₄Cl₄N₂
• Molecular Weight: 217.8682
• Mol File: 13484-50-9.mol

Chemical Properties

• Boiling Point: 241.6°C at 760 mmHg
• Flash Point: 123.3°C
• Density: 1.761g/cm³
• Vapor Pressure: 0.0551mmHg at 25°C
• Refractive Index: 1.594
• CAS DataBase Reference: tetrachloropyrazine(CAS DataBase Reference)
• NIST Chemistry Reference: tetrachloropyrazine(13484-50-9)
• EPA Substance Registry System: tetrachloropyrazine(13484-50-9)

Safety Data

• Hazardous Substances Data: 13484-50-9(Hazardous Substances Data)

Usage

Uses

Used in Pharmaceutical Industry:
Tetrachloropyrazine is utilized as an intermediate in the synthesis of various pharmaceuticals for its potential medicinal properties, contributing to the development of new drugs and therapies.
Used in Dye Industry:
In the dye industry, tetrachloropyrazine serves as a key component in the production of dyes, leveraging its chemical structure to create a range of colorants for different applications.
Used in Agricultural Chemicals:
Tetrachloropyrazine is employed in the manufacturing of agricultural chemicals, where it may contribute to the development of pesticides or other agrochemicals to enhance crop protection and yield.

Upstream product

• 290-37-9 1,4-pyrazine 
• 106-57-0 Glycine anhydride 
• 20074-67-3 tetrachloropyridazine 

Downstream Products

• 1145685-43-3 2,3-dichloro-5,10-dihydro-5-phenylpyrazino[2,3-b]quinoxaline 
• 1145685-44-4 5,7-diphenyl-5,7-dihydro-5,6,7,12,13,14-hexaazapentacene 
• 1379772-00-5 5,12-bisphenyl-5,12-dihydro-5,6,7,12,13,14-hexaazapentacene 
• 21885-49-4 2,3,5,6-tetrakis(p-methoxyphenyl)pyrazine 
• 642-04-6 2,3,5,6-tetraphenylpyrazine 

Relevant articles and documents

Synthesis of tetraaryl- and tetraalkenylpyrazines by Suzuki-Miyaura reactions of tetrachloropyrazine

The first Suzuki-Miyaura reactions of tetrachloropyrazine allowed for a new and convenient approach to synthesize a variety of tetraarylpyrazines and tetraalkenylpyrazines, which were isolated in good to excellent yields. The products show strong fluoresc

Photolysis of Some Chlorinated Pyridazines

Photorearrangement of chlorinated pyridazines to chlorinated pyrazines proceeds with predictable regiocontrol if radical-stabilizing substituents are located at C4 and C5 of the pyridazine ring.Mechanistic studies imply that the chemistry originates from a reactive n,?* singlet state.An activation barrier of ca 4 kcal/mol is encountered as the excited state of tetrachloropyridazine rearranges to tetrachloropyrazine.

METHODS FOR PREPARING FAVIPIRAVIR

The present invention provides methods for preparing Favipiravir (6-fluoro-3-hydroxypyrazine-2-carboxamide).

Nitrogen-doped graphdiyne for effective metal deposition and heterogeneous Suzuki-Miyaura coupling catalysis

For heterogeneous catalysts with nitrogen doped carbon materials as supporting substrates, accurate nitrogen (N) species and content is an important factor for promoting the catalytic activity. In this paper, N-doped graphdiyne (NGDY) was prepared from tetraethynylpyrazine (TEP) by bottom-up synthesis method as the support of metal nanoparticles. Specific pyridine nitrogen atoms are introduced in the N-doped carbon material. This unique structure makes it a promising material to support ultrafine metal particles or clusters. Microwave-assisted anchoring of Pd, Pt, Cu, Ni nanoparticles on NGDY generated novel hybrid composites, in which Pd-NGDY has high versatility for Suzuki-Miyaura reaction. DFT calculations revealed a charge transfer from NGDY to Pd NPs, and the free energy distribution showed a downward trend for Suzuki-Miyaura coupling reactions.

Tetracoordinate Boron-Fused Double [5]Helicenes as Cathode Active Materials for Lithium Batteries

Double [5]helicenes possessing two tetracoordinated boron atoms at the ring junctions were synthesized from glycine anhydride in three steps. The helicene with fluorine substituents on the boron atoms was employed as a cathode active material in a lithium battery to demonstrate moderate performance in the 1.8-3.5 V range with more than 63 mAh g-1 discharge capacity for 20 cycles and high Coulombic efficiency of over 90%.

Pyrazine derivatives and its preparation and pharmaceutical composition and use thereof (by machine translation)

The invention discloses a new class of pyrazine derivatives, and its preparation and pharmaceutical composition and use. Specifically, relates to the general formula I and II shown in the pyrazine derivative, a pharmaceutically acceptable salt thereof, and its preparation method, comprising one or more of the compounds of the composition, and the compound in treating mitochondrial function disorders related diseases such as the metabolic syndrome, neurodegenerative diseases, aging, the ischemia reperfusion, use of cancer and other diseases. (by machine translation)

Straightforward synthesis of tetraalkynylpyrazines and their photophysical properties

Tetrafold Sonogashira reactions of tetrachloropyrazine were investigated to provide a one-step synthesis of various tetraalkynylpyrazines. The reaction conditions were thoroughly optimized using modern catalysts and ligands, and products were generally is

A way to stable, highly emissive fluorubine dyes: Tuning the electronic properties of azaderivatives of pentacene by introducing substituted pyrazines

Pentacene and its derivatives are among the most important examples of π-electron-rich molecules used in organic field effect transistors. The replacement of CH groups by nitrogen atoms opens an elegant way to generate highly electron-deficient molecules, known as oligoazaacenes. We describe the synthesis and spectroscopic properties of two novel derivatives of this family, namely the zwitterionic and quinoidal conjugated forms of dihydro-5,6,7,12,13, 14-hexaazapentacene (fluorubine). We outline a powerful strategy to tune the electronic properties of these redox-active azaacenes by the selective introduction of substituted pyrazines. Their acidochromic and solvatochromic behaviour is investigated experimentally and interpreted with the help of theoretical calculations. The simple "exchange" of substituents or protonation is shown to significantly alter the spectroscopic and electronic properties of these remarkably stable π-systems. Their exceptional optical properties, such as high fluorescence quantum yields combined with a redox-active behaviour, make them promising candidates for sensor materials. Additional marked features in the solid state, such as herringbone packing in combination with short π-π distances, will open access to electronic materials.

2,4-Diaryl[1,3,4H]thiadiazines fused to quinoxalines

Compounds are provided which have the formula: STR1 WHERE Ar1 and Ar2 are aromatic radicals and X and Y are 1 to 2 nitrogen atoms and conversely 3 to 2 carbon atoms which may have selected substitutes. Preferably, 2 adjacent carbon atoms (usually the 2 Y's) have a butadienyl or a substituted butadienyl attached thereto. The compounds are useful as dyes.