2,6-diamino-5-hydroxy-3-(phenylazo)pyridine

Base Information

• Chemical Name: 2,6-diamino-5-hydroxy-3-(phenylazo)pyridine
• CAS No.: 86271-56-9
• Molecular Formula: C₁₁H₁₁N₅O
• Molecular Weight: 229.241
• Mol file: 86271-56-9.mol

Synonyms:5-OH-Pap;3-Pyridinol,2,6-diamino-5-(phenylazo);2,5-BIS(4-AMINOPHENYL)-1,3,4-OXADIAZOLE FOR FLUORESCENCE;2,6-Diamino-5-hydroxy-3-(phenylazo)pyridine;5-Hydroxyphenylazopyridine;2,6-Diamino-5-(phenylazo)-3-pyridinol;

Chemical Property of 2,6-diamino-5-hydroxy-3-(phenylazo)pyridine

Chemical Property:

• Vapor Pressure: 0.00025mmHg at 25°C
• Boiling Point: 324.2°Cat760mmHg
• Flash Point: 149.9°C
• PSA: 109.88000
• Density: 1.45g/cm³
• LogP: 3.52940
• Storage Temp.: Hygroscopic, -20°C Freezer, Under inert atmosphere
• Solubility.: DMSO (Slightly), Methanol (Slightly)

Purity/Quality:

98%Min ^*data from raw suppliers

2,6-Diamino-5-hydroxy-3-(phenylazo)pyridine ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 2,6-diamino-5-hydroxy-3-(phenylazo)pyridine

There total 4 articles about 2,6-diamino-5-hydroxy-3-(phenylazo)pyridine which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 7.86%

(E)-3-methoxy-5-(phenyldiazenyl)pyridine-2,6-diamine → (E)-2,6-diamino-5-(phenyldiazenyl)pyridin-3-ol (86271-56-9)

Guidance literature:

With boron tribromide; In dichloromethane; at 20 ℃; for 16h;

Reference yield:

2,6-dibromo-3-methoxylpyridine (79491-45-5) → (E)-2,6-diamino-5-(phenyldiazenyl)pyridin-3-ol (86271-56-9)

Guidance literature:

Multi-step reaction with 3 steps

1.1: CyJohnPhos; tris-(dibenzylideneacetone)dipalladium⁽⁰⁾ / tetrahydrofuran / 0.25 h / Inert atmosphere

1.2: 3 h / 0 - 80 °C / Inert atmosphere

2.1: sodium nitrite; hydrogenchloride / water / 0.33 h / 0 - 5 °C

2.2: 1 h / 0 - 20 °C

3.1: boron tribromide / dichloromethane / 16 h / 20 °C

With hydrogenchloride; tris-(dibenzylideneacetone)dipalladium⁽⁰⁾; boron tribromide; CyJohnPhos; sodium nitrite; In tetrahydrofuran; dichloromethane; water;

Reference yield:

3-methoxypyridine-2,6-diamine (138323-94-1) → (E)-2,6-diamino-5-(phenyldiazenyl)pyridin-3-ol (86271-56-9)

Guidance literature:

Multi-step reaction with 2 steps

1.1: sodium nitrite; hydrogenchloride / water / 0.33 h / 0 - 5 °C

1.2: 1 h / 0 - 20 °C

2.1: boron tribromide / dichloromethane / 16 h / 20 °C

With hydrogenchloride; boron tribromide; sodium nitrite; In dichloromethane; water;

upstream raw materials:

2,6-dibromo-3-methoxylpyridine

3-methoxypyridine-2,6-diamine

2,6-dibromopyridin-3-ol

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