2974-90-5

Basic information

• Product Name: 3,4'-DICHLOROBIPHENYL
• Synonyms: PCB 13;PCB NO 13;BZNO 13;3,4'-CB;1-chloro-4-(3-chlorophenyl)benzene;1-chloro-3-(4-chlorophenyl)benzene
• CAS NO: 2974-90-5
• Molecular Formula: C₁₂H₈Cl₂
• Molecular Weight: 223.1
• Mol File: 2974-90-5.mol
• Article Data: 10

Chemical Properties

• Boiling Point: 321.3°Cat760mmHg
• Flash Point: 147.8°C
• Appearance: /
• Density: 1.249g/cm³
• CAS DataBase Reference: 3,4'-DICHLOROBIPHENYL(CAS DataBase Reference)
• NIST Chemistry Reference: 3,4'-DICHLOROBIPHENYL(2974-90-5)
• EPA Substance Registry System: 3,4'-DICHLOROBIPHENYL(2974-90-5)

Safety Data

• Hazardous Substances Data: 2974-90-5(Hazardous Substances Data)

Usage

Uses

3,4''-Dichlorobiphenyl is a polychlorinated biphenyl (PCB) congeners.

Upstream product

• 673-41-6 p-chlorobenzenediazonium tetrafluoroborate 
• 10312-71-7 1,6-bis-(4-chlorophenyl)-3,4-diacetyl-1,5-hexazadiene 
• 108-90-7 chlorobenzene 
• 79991-27-8 1-p-chlorophenyl-3,4-diacetyl-1-tetrazene 
• 29682-41-5 2,5-dichloroiodobenzene 
• 1679-18-1 4-Chlorophenylboronic acid 
• 16606-02-3 2,4',5-Trichlorobiphenyl 
• 108-95-2 phenol 
• 67-63-0 isopropyl alcohol 
• 106-47-8 4-chloro-aniline 

Downstream Products

• 1290615-12-1 C₇₂H₅₀N₄ 
• 92-52-4 biphenyl 

Relevant articles and documents

Visible-Light-Promoted, Catalyst-Free Gomberg-Bachmann Reaction: Synthesis of Biaryls

Biaryls were synthesized via a novel visible-light-promoted Gomberg-Bachmann reaction that does not require a photosensitizer or any metal reagents. The formation of an electron donor-acceptor complex between aryl diazonium salts and pyridine allows, under visible-light irradiation, the synthesis of biaryls in moderate-to-high yields.

Hydrocarbons and chloroaromatics from anilines and n-butyl nitrite

A single reagent, i.e. n-butyl nitrite, can be used to oxidize an aromatic amine, or the corresponding N-methylene derivative, to a diazo compound followed by its subsequent reduction to hydrocarbon in a single batch.Alternatively, a chloro derivative can be obtained if carbon tetrachloride is used as the solvent.The reactions appear to be general and complete product identification was accomplished.

Vapour-phase Chemistry of Arenes. Part 13. Reactivity and Selectivity in the Gas-phase Reactions of Hydroxyl Radicals with Monosubstituted Benzenes at 563 K

The reactions of hydroxyl radicals with benzene derivates C6H5Z (Z = H, Me, F, Cl, Br, I, CF3, or CN) have been studied in a flow reactor at 563 K in nitrogen, using the thermolysis of ButOOH as a source of .OH.Under these conditions there are two product-forming pathways.The major one involves hydrogen abstraction to give aryl radicals ZC6H4. (II) as the first step; depending on Z, its displacement to form phenol may also occur.Relative rates for hydrogen abstraction were determined in competition experiments using side-chain hydrogen abstraction from added toluene as a reference.This resulted in the order (for Z =): 1,8(Me), 1.0(H), 0.47(F), 0.29(Cl), 0.34(CF3), 0.20(CN), consonant with the electrophilic nature of .OH.The site selectivity of hydrogen abstractions was determined by scavenging part of the aryl radicals (II) with iodine.A Hammett plot, using ? constants for meta and para positions, led to ρ -1.0.The features of hydrogen abstraction by .OH are discussed and compared with those for the analogous reaction of Cl.The formation of phenol was found to decrease in importance in the order F, Cl, Br, and I.This result is rationalized on a thermochemical kinetic basis.