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CAS No.: | 34883-43-7 |
---|---|
Name: | 2,4'-DICHLOROBIPHENYL |
Article Data: | 22 |
Molecular Structure: | |
Formula: | C12H8 Cl2 |
Molecular Weight: | 223.102 |
Synonyms: | Biphenyl,2,4'-dichloro- (7CI); 2,4'-Dichlorobiphenyl; CB 8; PCB 8 |
Density: | 1.249g/cm3 |
Melting Point: | 46°C |
Boiling Point: | 303.3°Cat760mmHg |
Flash Point: | 133.6°C |
Solubility: | 0.62mg/L(25 oC) |
Hazard Symbols: | |
Risk Codes: | 33-50/53 |
Safety: | Low toxicity by ingestion. When heated to decomposition it emits toxic vapors of Cl−. |
PSA: | 0.00000 |
LogP: | 4.66040 |
biphenyl
A
2-chloro-1,1'-biphenyl
B
2,4'-dichlorobiphenyl
C
4,4'-dichlorobiphenyl
D
4'-biphenyl chloride
Conditions | Yield |
---|---|
With chlorine; K-Zeolith L In dichloromethane at 20℃; for 6h; Product distribution; further zeolithes; further solvents and reaction conditions; | A 1.9% B 4.9% C 89% D 3% |
With chlorine; K-Zeolith L In dichloromethane at 20℃; for 6h; | A 1.9% B 4.9% C 89% D 3% |
With chlorine; K-Zeolith L In tetrachloromethane at 20℃; for 6h; Title compound not separated from byproducts; | A 10% B 14.7% C 66.5% D 5.7% |
With chlorine; K-Zeolith L In various solvent(s) at 20℃; for 6h; Title compound not separated from byproducts; | A 10.1% B 5.4% C 39.7% D 35.9% |
With chlorine; K-Zeolith L In acetic acid at 40℃; for 6h; Title compound not separated from byproducts; | A 28.9% B 8.8% C 13% D 31.9% |
Conditions | Yield |
---|---|
With tris-(dibenzylideneacetone)dipalladium(0); caesium carbonate; 1,3,5,7-tetramethyl-8-phenyl-2,4,6-trioxa-8-phosphatricyclo[3.3.1.13,7]decane In toluene at 70℃; Suzuki coupling; Inert atmosphere; chemoselective reaction; | 64% |
Conditions | Yield |
---|---|
Stage #1: 1-Bromo-2-iodobenzene With n-butyllithium In tetrahydrofuran; hexane at -70℃; Flow reactor; Stage #2: 4-chlorophenyl lithium In tetrahydrofuran at 0℃; Flow reactor; Stage #3: With hexachloroethane In tetrahydrofuran; hexane at -30℃; Flow reactor; | 64% |
chlorobenzene
phenol
A
2,3'-dichloro-1,1'-biphenyl
B
2,4'-dichlorobiphenyl
C
3,4'-dichlorobiphenyl
D
4,4'-dichlorobiphenyl
E
PCB 11
F
2,2'-Dichlorobiphenyl
Conditions | Yield |
---|---|
With tert.-butylhydroperoxide; iodine at 289.9℃; for 0.0272222h; Product distribution; | A 34.4% B 18.7% C 15.5% D 3.9% E 13.1% F 14.4% |
2,4'-diaminobiphenyl
2,4'-dichlorobiphenyl
Conditions | Yield |
---|---|
With sulfuric acid Diazotization.Behandlung der Diazoniumsalz-Loesung mit Hg(NO3)2 und KCl und Erhitzen des erhaltenen Diazonium-tetrachloromercurats(II) mit KCl bis auf 120grad; |
3-chloro-4-(4-chlorophenyl)benzenamine
2,4'-dichlorobiphenyl
Conditions | Yield |
---|---|
With sulfuric acid Diazotization.Behandlung der Diazoniumsalz-Loesung mit H3PO2; |
p-chlorobenzenediazonium tetrafluoroborate
A
2,4'-dichlorobiphenyl
B
3,4'-dichlorobiphenyl
C
(4-chloro-phenyl)-(5,4'-dichloro-biphenyl-2-yl)-diazene
D
chlorobenzene
E
bis-(4-chloro-phenyl)-diazene
Conditions | Yield |
---|---|
With titanium(III) sulphate In water; acetonitrile at 0 - 5℃; Mechanism; Product distribution; other solvents, p-chlorobenzenediazonium sulfate and benzenediazonium salts; | A 0.7 % Chromat. B 6.5 % Chromat. C 63.5 % Chromat. D 5.8 % Chromat. E 5.3 % Chromat. |
4-chloro-aniline
chlorobenzene
A
2,4'-dichlorobiphenyl
B
3,4'-dichlorobiphenyl
C
4,4'-dichlorobiphenyl
Conditions | Yield |
---|---|
With sodium nitrite; trichloroacetic acid; copper(l) chloride at 85℃; for 2h; Yield given. Yields of byproduct given; |
1,6-bis-(4-chlorophenyl)-3,4-diacetyl-1,5-hexazadiene
chlorobenzene
A
Diacetylhydrazin
B
2,4'-dichlorobiphenyl
C
3,4'-dichlorobiphenyl
D
4,4'-dichlorobiphenyl
E
1-acetyl-1-p-chlorophenylhydrazine
Conditions | Yield |
---|---|
at 131℃; Product distribution; Mechanism; thermolysis, var.: photolysis; | |
at 10℃; for 6h; Product distribution; Mechanism; Irradiation; |
p-chlorobenzenediazonium tetrafluoroborate
chlorobenzene
A
2,4'-dichlorobiphenyl
B
3,4'-dichlorobiphenyl
C
4,4'-dichlorobiphenyl
Conditions | Yield |
---|---|
With potassium acetate; 18-crown-6 ether for 1.5h; Ambient temperature; Yield given. Yields of byproduct given; | |
With potassium acetate; 18-crown-6 ether for 1.5h; Product distribution; Ambient temperature; other catalysts and reaction conditions; other aromatic reactants; | |
With pyridine at 23℃; for 18h; Gomberg-Bachman Arylation; Inert atmosphere; Irradiation; Overall yield = 94 percent; Overall yield = 126 mg; |
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Empirical Formula: C12H8Cl2
Molecular Weight: 223.0979 g/mol
EINECS: 215-648-1
Index of Refraction: 1.594
Density: 1.249 g/cm3
Flash Point: 133.6 °C
Enthalpy of Vaporization: 52.19 kJ/mol
Boiling Point: 303.3 °C at 760 mmHg
Vapour Pressure: 0.00168 mmHg at 25 °C
Storage tempreture: 2-8 °C
Structure of 2,4'-Dichloro-1,1'-biphenyl (CAS NO.34883-43-7):
IUPAC Name: 1-Chloro-2-(4-chlorophenyl)benzene
Product Categories of 2,4'-Dichloro-1,1'-biphenyl (CAS NO.34883-43-7): Alphabetic
1. | orl-mus LD50:7860 mg/kg | EVHPAZ EHP, Environmental Health Perspectives. Subseries of DHEW Publications. 24 (1978),173. |
Low toxicity by ingestion. When heated to decomposition it emits toxic vapors of Cl−.
Hazard Codes of 2,4'-Dichloro-1,1'-biphenyl (CAS NO.34883-43-7): N
Risk Statements: 33-50/53
R33:Danger of cumulative effects.
R50/53:Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements: 35-60-61
S35:This material and its container must be disposed of in a safe way.
S60:This material and its container must be disposed of as hazardous waste.
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
2,4'-Dichloro-1,1'-biphenyl ,its cas register number is 34883-43-7. It also can be called 2,4'-Dichlorobiphenyl ; and 1,1'-Biphenyl, 2,4'-dichloro- .