CAS No.531-91-9,N,N'-Diphenylbenzidine Suppliers

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Basic Information

Molecular Structure:
CAS No.:	531-91-9
Name:	N,N'-Diphenylbenzidine
Article Data:	39
Cas Database

Formula:	C₂₄H₂₀N₂
Molecular Weight:	336.436
Synonyms:	Benzidine,N,N'-diphenyl- (6CI,7CI,8CI);[1,1'-Biphenyl]-4,4'-diamine, N,N'-diphenyl-(9CI);4,4'-Bis(phenylamino)-1,1'-biphenyl;4,4'-Bis(phenylamino)biphenyl;N,N'-Diphenyl-[1,1'-biphenyl]-4,4'-diamine;N,N'-Diphenyl-p,p'-biphenylenediamine;[1,1'-Biphenyl]-4,4'-diamine,N4,N4'-diphenyl-;
EINECS:	208-521-7
Density:	1.173 g/cm³
Melting Point:	246-248 °C(lit.)
Boiling Point:	535 °C at 760 mmHg
Flash Point:	342 °C
Solubility:	Insoluble in water.
Appearance:	grey to brownish fine crystalline powder
Hazard Symbols:	Xi
Risk Codes:	N/A
Safety:	22-24/25
Transport Information:	UN 2811
PSA:	24.06000
LogP:	6.98680

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Synthetic route

: 108-90-7
chlorobenzene

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p,p'-diaminobiphenyl

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N,N'-diphenyl-p-phenylenediamine

Conditions

Conditions	Yield
With sodium t-butanolate; Ni(0)*2IPr In 1,4-dioxane at 100℃;	95%
With palladium diacetate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; sodium hydroxide In tetrahydrofuran; ethanol; water; toluene; tert-butyl alcohol at 100℃; for 16h; Glovebox; Inert atmosphere; Schlenk technique;	116.5 mg

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4-(4-bromophenyl)bromobenzene

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aniline

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N,N'-diphenyl-p-phenylenediamine

Conditions

Conditions	Yield
Stage #1: 4-(4-bromophenyl)bromobenzene; aniline In 1-methyl-pyrrolidin-2-one; toluene at 20℃; for 0.25h; Stage #2: With sodium t-butanolate In 1-methyl-pyrrolidin-2-one; toluene for 0.166667h; Stage #3: tris-(dibenzylideneacetone)dipalladium(0); XPhos In 1-methyl-pyrrolidin-2-one; toluene at 20 - 60℃; for 24.5h; Product distribution / selectivity;	93.1%
With sodium t-butanolate; tris-(dibenzylideneacetone)dipalladium(0); tri-tert-butyl phosphine In toluene at 90℃; for 3h;	90%
With tris-(dibenzylideneacetone)dipalladium(0); tri-tert-butyl phosphine; sodium t-butanolate In toluene at 90℃; for 3h;	90%

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4-(4-bromophenyl)bromobenzene

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N-trimethylsilylaniline

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N,N'-diphenyl-p-phenylenediamine

Conditions

Conditions	Yield
Stage #1: N-trimethylsilylaniline With n-butyl magnesium bromide In dibutyl ether at 0 - 100℃; for 1h; Inert atmosphere; Stage #2: 4-(4-bromophenyl)bromobenzene With lithium bromide; iron(II) chloride In dibutyl ether at 140℃; for 24h; Inert atmosphere;	87%

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bromobenzene

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p,p'-diaminobiphenyl

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N,N'-diphenyl-p-phenylenediamine

Conditions

Conditions	Yield
With tris-(dibenzylideneacetone)dipalladium(0); tri-tert-butyl phosphine; sodium t-butanolate In toluene for 5h; Inert atmosphere; Reflux;	80.2%
With tri-tert-butyl phosphine; palladium diacetate; sodium t-butanolate In toluene for 2h; Reflux;	46.1 g

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diphenylamine

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N,N'-diphenyl-p-phenylenediamine

Conditions

Conditions	Yield
Stage #1: diphenylamine With methanesulfonic acid In dichloromethane at 0℃; Stage #2: With chloranil In dichloromethane at 0 - 20℃; for 24h;	38%
With aluminum (III) chloride In neat (no solvent) at 95℃; Reagent/catalyst; Temperature;	14.9%
With pyridine; nitrosonium tetrafluoroborate In acetonitrile Mechanism;

: 632-52-0
tetraphenylhydrazine

: 531-91-9
N,N'-diphenyl-p-phenylenediamine

Conditions

Conditions	Yield
With sulfuric acid; acetic acid
With sulfuric acid
With hydrogenchloride

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N,N-diphenylhydroxylamine

: 531-91-9
N,N'-diphenyl-p-phenylenediamine

Conditions

Conditions	Yield
With sulfuric acid at -20℃;

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N,N'-biphenyl-4,4'-diyl-di-anthranilic acid

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N,N'-diphenyl-p-phenylenediamine

Conditions

Conditions	Yield
at 285℃;
at 285℃;

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N,N'-dinitroso-N,N'-diphenyl-benzidine

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N,N'-diphenyl-p-phenylenediamine

Conditions

Conditions	Yield
With sulfuric acid; acetic acid Reduktion der entstandenen Loesung mit Zinkstaub;

: 56-23-5
tetrachloromethane

: 1,2,15,16-tetraphenyl-1,2,15,16-tetraaza-[2.0.2.0]paracyclophane

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N,N'-diphenyl-p-phenylenediamine

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Chemistry

The Molecular Structure of (1,1'-Biphenyl)-4,4'-diamine, N4,N4'-diphenyl- (CAS NO.531-91-9):

Molecular Formula: C₂₄H₂₀N₂
Molecular Weight: 336.429000 g/mol
IUPAC: 4-(4-anilinophenyl)-N-phenylaniline
Nominal Mass: 336 Da
Average Mass: 336.429 Da
Monoisotopic Mass: 336.162649 Da
Index of Refraction: 1.689
Molar Refractivity: 109.59 cm³
Molar Volume: 286.7 cm³
Surface Tension: 51.2 dyne/cm
Density: 1.173 g/cm³
Flash Point: 342 °C
Enthalpy of Vaporization: 81.13 kJ/mol
Boiling Point: 535 °C at 760 mmHg
Vapour Pressure: 1.6E-11 mmHg at 25°C
InChI
InChI=1/C24H20N2/c1-3-7-21(8-4-1)25-23-15-11-19(12-16-23)20-13-17-24(18-14-20)26-22-9-5-2-6-10-22/h1-18,25-26H
Smiles
N(c1ccc(c2ccc(Nc3ccccc3)cc2)cc1)c1ccccc1

Specification

(1,1'-Biphenyl)-4,4'-diamine, N4,N4'-diphenyl- (CAS NO.531-91-9) is also called as N,N'-Diphenylbenzidine ; AI3-18241 ; Diphenylbenzidine ; EINECS 208-521-7 ; NSC 4310 ; Benzidine, N,N'-diphenyl- (8CI) .