Production Method 1

15426-17-2

84530-60-9

Reaction Conditions

1.1 Reagents: Hydrazine hydrate (1:1) Catalysts: Melamine (Co(OAc)2 complex, carbon-supported, pyrolyzed) ,  Carbon Solvents: Methanol ;  6 h, 40 °C; 40 °C → rt
1.2 Reagents: Hydrochloric acid ;  overnight, pH 2, cooled
1.3 Reagents: Sodium hydroxide Solvents: Water ;  neutralized

Reference

Reusable Cobalt-Catalyzed Selective Transfer Hydrogenation of Azoarenes and Nitroarenes

Dey, Sadhan ; et al, Journal of Organic Chemistry, 2023, 88(14), 10048-10057

Production Method 2

15426-17-2

84530-60-9

Reaction Conditions

1.1 Reagents: Acetic acid ,  Zinc ,  Phosphoric acid Solvents: Tetrahydrofuran ;  30 min, 20 °C

Reference

Synthesis of cyclohexane-based polyamide-polyimide having low thermal expansion coefficient, low dielectric constant, high transparency, and high thermal resistance

, Taiwan, , ,

Production Method 3

23377-24-4

84530-60-9

Reaction Conditions

1.1 Reagents: Acetic acid ,  Zinc ,  Phosphoric acid Solvents: Tetrahydrofuran ,  Water ;  < 40 °C; 30 min, < 55 °C
1.2 Reagents: Hydrochloric acid Solvents: Water ;  0 °C; 30 min, 0 °C
1.3 Reagents: Ammonium hydroxide ;  neutralized, rt

Reference

Synthesis, characterization and hydrolysis of aromatic polyazomethines containing non-coplanar biphenyl structures

Chen, Jyh-Chien; et al, Polymer, 2011, 52(4), 954-964

Production Method 4

84530-60-9

Reaction Conditions

1.1 -
2.1 Reagents: Hydrazine hydrate (1:1) Catalysts: Melamine (Co(OAc)2 complex, carbon-supported, pyrolyzed) ,  Carbon Solvents: Methanol ;  6 h, 40 °C; 40 °C → rt
2.2 Reagents: Hydrochloric acid ;  overnight, pH 2, cooled
2.3 Reagents: Sodium hydroxide Solvents: Water ;  neutralized

Reference

Reusable Cobalt-Catalyzed Selective Transfer Hydrogenation of Azoarenes and Nitroarenes

Dey, Sadhan ; et al, Journal of Organic Chemistry, 2023, 88(14), 10048-10057

Production Method 5

84530-60-9

Reaction Conditions

1.1 Reagents: Sodium hydroxide ,  Zinc Solvents: Ethanol ,  Water ;  < 70 °C; 15 min, 70 °C; 2 h, reflux
1.2 Reagents: Sulfuric acid Solvents: Water ;  0 °C; 40 min, 0 °C
1.3 Reagents: Hydrochloric acid Solvents: Water ;  2 h, reflux
1.4 Reagents: Sodium hydroxide Solvents: Water ;  0 °C

Reference

On-surface synthesis of a phenylene analogue of nonacene

Izydorczyk, Irena; et al, Chemical Communications (Cambridge, 2022, 58(25), 4063-4066

Production Method 6

84530-60-9

Reaction Conditions

1.1 Reagents: Sodium hydroxide ,  Zinc Solvents: Ethanol ,  Water ;  rt → 70 °C; 15 min, 70 °C; 15 min, 70 °C; 70 °C → reflux; cooled
1.2 Reagents: Hydrochloric acid Solvents: Water ;  15 min, 60 °C; cooled
1.3 Reagents: Sodium hydroxide Solvents: Water ;  heated

Reference

A search for blues brothers: X-ray crystallographic/spectroscopic characterization of the tetraarylbenzidine cation radical as a product of aging of solid magic blue

Talipov, Marat R.; et al, Organic & Biomolecular Chemistry, 2016, 14(10), 2961-2968

Production Method 7

55138-19-7

84530-60-9

Reaction Conditions

1.1 Reagents: Hydrochloric acid

Reference

Synthesis of substituted dibenzophospholes. Part 1

Cornforth, John; et al, Journal of the Chemical Society, 1982, (10), 2289-97

4,4'-Diamino-2,2'-dibromobiphenyl Raw materials

• Diazene,1,2-bis(3-bromophenyl)-
• HYDRAZINE, 1,2-BIS(3-BROMOPHENYL)-
• Diazene,1,2-bis(3-bromophenyl)-, 1-oxide

4,4'-Diamino-2,2'-dibromobiphenyl Preparation Products

• 4,4'-Diamino-2,2'-dibromobiphenyl (84530-60-9)

• 1. An air-stable organometallic polymer containing titanafluorene moieties obtained by the Sonogashira–Hagihara cross-coupling polycondensation?
  Alvin Tanudjaja,Shinsuke Inagi,Fusao Kitamura,Toshikazu Takata,Ikuyoshi Tomita Dalton Trans., 2021,50, 3037-3043
• 2. An alumina stabilized graphene oxide wrapped SnO2 hollow sphere LIB anode with improved lithium storage?
  Xiang Liu,Qian Sun,A. B. Djuri?i?,Maohai Xie,Baohu Dai,Jinyao Tang,Charles Surya,Changzhong Liao,Kaimin Shih RSC Adv., 2015,5, 100783-100789
• 3. Acetyl group orientation modulates the electronic ground-state asymmetry of the special pair in purple bacterial reaction centers
  P. K. Wawrzyniak,M. T. P. Beerepoot,H. J. M. de Groot,F. Buda Phys. Chem. Chem. Phys., 2011,13, 10270-10279
• 4. An automatic determination of thoria in thoria-urania mixtures
  Analyst, 1966,91, 208-210
• 5. An amino group functionalized metal–organic framework as a luminescent probe for highly selective sensing of Fe3+ ions?
  Zhonghua Xiang,Chuanqi Fang,Sanhua Leng,Dapeng Cao J. Mater. Chem. A, 2014,2, 7662-7665

• Solvents and Organic Chemicals Organic Compounds Amines/Sulfonamides
• Solvents and Organic Chemicals Organic Compounds

• 6933-10-4(4-Bromo-3-methylaniline)
• 6311-59-7(2,6-dibromo-2',6'-dimethylbiphenyl-4,4'-diamine)
• 13194-73-5(3,5-Dibromo-4-methylaniline)
• 59557-90-3(4-Bromo-3,5-dimethylaniline)
• 3365-82-0(4'-Bromo-[1,1'-biphenyl]-4-amine)
• 1036750-83-0(3-Amino-6-bromobiphenyl)
• 91394-64-8(3'-BROMO-BIPHENYL-4-YLAMINE)
• 7745-91-7(3-Bromo-4-methylaniline)
• 40641-71-2(4'-Bromo-biphenyl-3-ylamine)
• 861556-08-3([1,1'-Biphenyl]-4-amine, 2,6-dibromo-)