Intermediate of API

84-67-3

  • Product Name：2,2'-Dimethyl-[1,1'-biphenyl] -4,4'-Diamine (M-Tolidine)
  • Molecular Formula：C14H16N2
  • Specifications：99%
  • Molecular Weight：212.294
Inquiry

Product Details;

CasNo： 84-67-3

Molecular Formula： C14H16N2

Factory Supply 99% Purity 2,2'-Dimethyl-[1,1'-biphenyl] -4,4'-Diamine (M-Tolidine) 84-67-3 White Powder

  • Molecular Formula:C14H16N2
  • Molecular Weight:212.294
  • Vapor Pressure:6.61E-05mmHg at 25°C 
  • Melting Point:105-106 °C 
  • Refractive Index:1.638 
  • Boiling Point:344.4 °C at 760 mmHg 
  • PKA:4.89±0.10(Predicted) 
  • Flash Point:192.9 °C 
  • PSA：52.04000 
  • Density:1.106 g/cm3 
  • LogP:4.29720 

M-TOLIDINE(Cas 84-67-3) Usage

Chemical Properties

Pink particles

Uses

2,2''-Dimethyl-[1,1''-biphenyl]-4,4''-diamine (cas# 84-67-3) is a useful reagent for manufacturing cured films and semiconductor devices.

Preparation

M-Tolidine is made by the reduction of m-nitrotoluene with zinc dust and sodium hydroxide solution. The subsequent rearrangement is carried out with hydrochloric acid or sulfuric acid and gives rise to m-tolidine dihydrochloride or m-tolidine sulfate, which are isolated as salts. The free base is diffificult to isolate and is therefore not a commercial product.

Chemical Reactivity

M-Tolidine gives no color in the presence of iron(III) chloride. It is tetrazotized with nitrite and acid and couples to form dyes.

InChI:InChI=1/C14H16N2/c1-9-7-11(15)3-5-13(9)14-6-4-12(16)8-10(14)2/h3-8H,15-16H2,1-2H3

84-67-3 Relevant articles

DIAMINE COMPOUND, AND POLYIMIDE PRECURSOR AND POLYIMIDE FILM PREPARED BY USING THE SAME

-

Paragraph 0213; 0214; 0217; 0218, (2020/11/03)

The present invention disclosed a novel ...

DIAMINE COMPOUND, POLYIMIDE PRECURSOR AND POLYIMIDE FILM PREPARED BY USING SAME

-

Paragraph 0250-0251; 0253; 0266-0267; 0269, (2020/09/26)

The present invention discloses a novel ...

Production method of 2,2'-dimethyl[1,1'-biphenyl]-4,4'-diamine

-

Paragraph 0027-0042, (2020/01/08)

The invention discloses a production met...

Structurally and electronically modulated spin interaction of transient biradicals in two photon-gated stepwise photochromism

Yonekawa, Izumi,Mutoh, Katsuya,Kobayashi, Yoichi,Abe, Jiro

, p. 290 - 301 (2018/03/23)

The development of two-photon induced ph...

84-67-3 Process route

1-methyl-3-nitrobenzene
99-08-1

1-methyl-3-nitrobenzene

2,2'-dimethylbenzidine
84-67-3

2,2'-dimethylbenzidine

Conditions
Conditions Yield
With 1,4-dihydroxy-9,10-anthracenedione; platinum on activated charcoal; hydrogen; sodium hydroxide; In 5,5-dimethyl-1,3-cyclohexadiene; water; at 65 - 75 ℃; for 8h; under 6750.68 Torr; Solvent; Reagent/catalyst; Pressure; Temperature; Autoclave;
79.2%
With sodium hydroxide; ethanol; zinc; man gibt weitere 150 g Zinkstaub hinzu und kocht dann mit Salzsaeure; das ausgeschiedene Tolidinhydrochlorid bringt man durch Wasser in Loesung und faellt es durch konz.Salzsaeure wieder aus;
Multistep reaction; (i) Zn, aq. NaOH, (ii) aq. HCl, Et2O;
Multi-step reaction with 3 steps
1: alcoholic potash
2: alcoholic ammonium sulfide
3: diluted alcohol; diluted sulfuric acid
With ammonium sulfide; ethanol; sulfuric acid; potassium carbonate;
Multi-step reaction with 2 steps
1: zinc; sodium hydroxide / water; ethanol / 4 h / Reflux; Inert atmosphere
2: hydrogenchloride / water / 5 h / Inert atmosphere; Reflux
With hydrogenchloride; sodium hydroxide; zinc; In ethanol; water;
2,2'-dimethyl-4,4'-dinitro-biphenyl
59517-20-3

2,2'-dimethyl-4,4'-dinitro-biphenyl

2,2'-dimethylbenzidine
84-67-3

2,2'-dimethylbenzidine

Conditions
Conditions Yield
With 3% Pd/C; hydrazine; In ethanol; at 100 ℃; for 12h;
76%
With ethanol; nickel; Hydrogenation;
With hydrogenchloride; zinc;

84-67-3 Upstream products

  • 99-08-1
    99-08-1

    1-methyl-3-nitrobenzene

  • 59517-20-3
    59517-20-3

    2,2'-dimethyl-4,4'-dinitro-biphenyl

  • 588-04-5
    588-04-5

    3,3'-dimethylazobenzene

  • 621-26-1
    621-26-1

    3,3'-dimethylhydrazobenzene

84-67-3 Downstream products

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    2,2'-dimethylbiphenyl-4,4'-dicarbonitrile

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    2,2'-dimethyl-1,1'-biphenyl

  • 104294-86-2
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    2,2'-Dimethyl-4,4'-bis-(3-nitro-benzoylamino)-biphenyl

  • 139555-38-7
    139555-38-7

    {4'-[(Cyano-furan-2-yl-methyl)-amino]-2,2'-dimethyl-biphenyl-4-ylamino}-furan-2-yl-acetonitrile

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