1820-42-4

Basic information

• Product Name: Benzene, 1,1-(1,2-ethynediyl)bis(4-chloro-
• CAS NO: 1820-42-4
• Molecular Formula: C₁₄H₈Cl₂
• Molecular Weight: 247.124
• Mol File: 1820-42-4.mol

Chemical Properties

• Boiling Point: 352.3°Cat760mmHg
• Flash Point: 163.1°C
• Density: 1.3g/cm³
• CAS DataBase Reference: Benzene, 1,1-(1,2-ethynediyl)bis(4-chloro-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1,1-(1,2-ethynediyl)bis(4-chloro-(1820-42-4)
• EPA Substance Registry System: Benzene, 1,1-(1,2-ethynediyl)bis(4-chloro-(1820-42-4)

Safety Data

• Hazardous Substances Data: 1820-42-4(Hazardous Substances Data)

Usage

Uses

Used in Organic Synthesis:
Benzene, 1,1-(1,2-ethynediyl)bis(4-chlorois utilized as a reagent in organic synthesis for the production of various chemicals and materials. Its high reactivity allows for the formation of numerous derivatives and functional groups, making it a valuable component in the synthesis process.
Used in Chemical Production:
Benzene, 1,1-(1,2-ethynediyl)bis(4-chloroserves as a building block in the manufacturing of a wide range of chemicals and materials. Its unique structure and reactivity contribute to the development of new products and innovations in the chemical industry.
Used in Chlorinated Compound Preparation:
The presence of chloro substituents in Benzene, 1,1-(1,2-ethynediyl)bis(4-chloromakes it useful in the preparation of various chlorinated compounds. These chlorinated products find applications in different industries, such as pharmaceuticals, agrochemicals, and polymers.
Used in Pharmaceutical Industry:
Benzene, 1,1-(1,2-ethynediyl)bis(4-chlorois employed as an intermediate in the synthesis of certain pharmaceutical compounds. Its reactivity and functional group compatibility make it suitable for the development of new drugs and therapeutic agents.
Used in Agrochemical Industry:
Benzene, 1,1-(1,2-ethynediyl)bis(4-chlorois also used in the agrochemical industry for the synthesis of various agrochemical products, such as pesticides and herbicides. Its reactivity and chlorinated nature contribute to the effectiveness of these products in controlling pests and weeds.
Used in Polymer Industry:
Benzene, 1,1-(1,2-ethynediyl)bis(4-chlorois utilized in the polymer industry for the production of specific polymers and polymer additives. Its unique structure and reactivity enable the development of new polymer materials with improved properties and performance.

Upstream product

• 72-54-8 1,1-Dichloro-2,2-bis(p-chlorophenyl)ethane 
• 103-29-7 1,1'-(1,2-ethanediyl)bisbenzene 
• 5216-26-2 trans-1,2-Dichlor-1,2-bis-(4-chlorphenyl)-ethylen 
• 41468-28-4 2,3-bis(4-chlorophenyl)-2-cyclopropen-1-one 
• 532-11-6 anethole trithione 
• 637-87-6 1-Chloro-4-iodobenzene 
• 49748-64-3 1-copper(I) (4-chlorophenyl)ethyne 
• 13232-76-3 4,5-diphenyl-[1,2]dithiole-3-thione 
• 79183-98-5 1,2-dibromo-1,2-di-(p-chlorophenyl)-ethane 
• 74-86-2 acetylene 
• 52964-37-1 α,α'-Sulfonyl-bis(α-brom-4-chlor-toluol) 
• 121-44-8 triethylamine 
• 72-55-9 1,1-bis(4-chlorophenyl)-2,2-dichloroethylene 
• 1066-54-2 trimethylsilylacetylene 

Downstream Products

• 1217-92-1 2--6-chlor-indenon 
• 5216-36-4 4,4'-ethynediyl-di-benzonitrile 
• 5216-35-3 1,2-bis(4-chlorophenyl)ethane 
• 72234-51-6 3,4-bis-(4-chloro-phenyl)-[1,2,5]thiadiazole 
• 107906-28-5 3,4-Bis-(4-chloro-phenyl)-5-(1,1,1,3,3,3-hexamethyl-disilazan-2-yl)-1H-pyrrole-2-carbonitrile 
• 132119-67-6 1-(2-Benzyloxy-ethoxymethyl)-4,5-bis-(4-chloro-phenyl)-1H-[1,2,3]triazole 
• 3457-46-3 4,4'-dichlorobenzil 
• 32345-95-2 1,2-Di-p-chlorphenyl-2-phenylthiovinyl-2,4,6-trinitrobenzolsulfonat 
• 90-98-2 4,4'-Dichlorobenzophenone 
• 123248-22-6 butyl p-chlorocinnamate 
• 1059590-42-9 butyl (2E,4E,6E)-4,5-di(4-chlorophenyl)-7-phenyl-2,4,6-heptatrienoate 
• 1059590-62-3 1,2,3,4-tetra(4-chlorophenyl)-6-phenylfulvene 
• 125940-80-9 tricarbonyl(η4-2,5-diphenyl-3,4-(p-chlorphenyl)cyclopentadienone)ruthenium 
• 939044-78-7 [η4-tetrakis(4-chlorophenyl)cyclobutadiene](η5-formylcyclopentadienyl)cobalt(I) 

Relevant articles and documents

Rhodium(III)-catalysed decarbonylative annulation through C-H activation: Expedient access to aminoisocoumarins by weak coordination

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Direct coupling reactions of alkynylsilanes catalyzed by palladium(II) chloride and a di(2-pyridyl)methylamine-derived palladium(II) chloride complex in water and in NMP

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Poly(phenylene-carborane) for boron-carbide/carbon ceramic precursor synthesized via nickel catalysis

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Extensive Substituent Scrambling in Substituted Diphenylacetylenes on Electron Impact

Extensive randomization of the substituents is found in mono- and disubstituted diphenylacetylenes under electron impact conditions.The study of diphenylacetylenes with a variety of substituents indicates that the electron-withdrawing groups favour the substituent scrambling.All the substituted diphenylaceetylenes give an ion at m/z 176, having a common ion-structure, arising as a result of the expulsion of a hydrogen radical and the substituent in monosubstituted diphenylacetylenes and the expulsion of both the substituents in disubstituted diphenylacetylenes.A ring-expanded structure is postulated for this common fragment.

Pd-Catalyzed Alkyne Insertion/C-H Activation/[4 + 2] Carboannulation of Alkenes to the Synthesis of Polycyclics

An unprecedented Pd-catalyzed alkyne insertion/C-H activation/intramolecular [4 + 2] carboannulation of alkenes has been reported. In this transformation, the C-H activation was triggered by an in situ generated alkenylpalladium species via the Pd-catalyzed cross-coupling reaction of aryl iodides and alkynes. Subsequently, the resulting five-membered C, C-palladacycle intermediates were added across the alkenes, providing a unique approach to access diversified polycyclics in good efficiency. Two new rings and three C-C bonds were formed in one pot.

Synthesis and Photophysical Study of Heteropolycyclic and Carbazole Motif: Nickel-Catalyzed Chelate-Assisted Cascade C-H Activations/Annulations

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Palladium-Catalyzed Cascade Dearomative Spirocyclization and C?H Annulation of Aromatic Halides with Alkynes

Described herein is a palladium-catalyzed intermolecular dearomative annulation of aryl halides with alkynes, which provides a rapid approach to a class of structurally unique spiroembedded polycyclic aromatic compounds. The cascade process is accomplished by a sequential alkyne migratory insertion, Heck-type dearomatization, and C-H bond annulation. Further optoelectronic study indicated this fused spirocyclic scaffold could be a potential host material for OLEDs, as exemplified by a fabricated red PhOLED device with a maximum external quantum efficiency of 23.0%.

Selective Synthesis of Non-Aromatic Five-Membered Sulfur Heterocycles from Alkynes by using a Proton Acid/N-Chlorophthalimide System

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