Production Method 1

1667786-22-2

93841-24-8

Reaction Conditions

1.1 Reagents: Sodium hydroxide ,  Bromine Solvents: Water ;  45 min, 0 °C; 2 h, 70 - 75 °C; 75 °C → rt
1.2 Reagents: Sulfuric acid ;  0 °C

Reference

Preparation of 2,5-diaminophenylethanol sulfate for anti allergic hair dye

, China, , ,

Production Method 2

219712-65-9

93841-24-8

Reaction Conditions

1.1 Reagents: Hydrogen Catalysts: Palladium Solvents: Ethanol
1.2 Reagents: Sulfuric acid

Reference

Preparation of 1-(β-hydroxyethyl)-2,5-diaminobenzene or its salts from 1-(β-hydroxyethyl)-2-halogeno-5-nitrobenzene

, Japan, , ,

Production Method 3

104333-06-4

93841-24-8

Reaction Conditions

1.1 Reagents: Hydrogen Catalysts: Palladium hydroxide Solvents: Isopropanol ;  2 h, 2.0 MPa, rt → 55 °C
1.2 Reagents: Sulfuric acid

Reference

A process for preparing 2,5-diamino-benzeneethanol sulfate from 2-chlorobenzeneacetic acid

, China, , ,

Production Method 4

104333-06-4

93841-24-8

Reaction Conditions

1.1 Reagents: Hydrogen Catalysts: Palladium Solvents: Ethanol
1.2 Reagents: Sulfuric acid

Reference

Preparation of 1-(β-hydroxyethyl)-2,5-diaminobenzene or its salts from 2-amino-5-nitrophenylacetic acid

, Japan, , ,

Production Method 5

104333-06-4

93841-24-8

Reaction Conditions

1.1 Reagents: Hydrogen Catalysts: Palladium Solvents: Methanol ;  45 - 55 °C; 100 - 200 min, 1 MPa, 50 - 55 °C; 55 °C → 40 °C; 40 °C → 20 °C
1.2 Reagents: Sulfuric acid Solvents: Water ;  20 °C

Reference

Green synthesis method of 2,5-diaminophenethyl alcohol

, China, , ,

Production Method 6

93841-24-8

Reaction Conditions

Reference

Preparation of aminophenol derivatives and their use in coloring agents

, Germany, , ,

Benzeneethanol,2,5-diamino- Raw materials

• Benzeneethanol,2-amino-5-nitro-
• Benzamide, 4-amino-2-(2-hydroxyethyl)-
• Benzeneethanol, 5-nitro-2-[(phenylmethyl)amino]-

Benzeneethanol,2,5-diamino- Preparation Products

• Benzeneethanol,2,5-diamino- (93841-24-8)

• 1. Acenaphthenic hopanoids, a novel series of aromatised
  Teresita Carrillo-Hernández,Philippe Schaeffer,Pierre Albrecht Chem. Commun., 2001, 1976-1977
• 2. Aggregation-induced chiral symmetry breaking of a naphthalimide–cyanostilbene dyad?
  Xin Li,Liangliang Zhu,Sai Duan,Yanli Zhao,Hans ?gren Phys. Chem. Chem. Phys., 2014,16, 23854-23860
• 3. An analyte-triggered artificial peroxidase system based on dimanganese complex for a versatile enzyme assay?
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  Xixi Li,Nanwei Zhu,Ruohan Li,Qinpu Zhang Anal. Methods, 2020,12, 3376-3381
• 5. Aluminium alkyl and aryloxide complexes of pyrazine and bipyridines: synthesis and structure?
  Doug Ogrin,Laura H. van Poppel,Simon G. Bott,Andrew R. Barron Dalton Trans., 2004, 3689-3694

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