33354-58-4

Basic information

• Product Name: 2-azido-4-nitrophenol
• Synonyms: 2-azido-4-nitrophenol
• CAS NO: 33354-58-4
• Molecular Formula: C₆H₄N₄O₃
• Molecular Weight: 0
• Mol File: 33354-58-4.mol
• Article Data: 2

Chemical Properties

• Boiling Point: °Cat760mmHg
• Flash Point: °C
• Appearance: /
• Density: g/cm³
• CAS DataBase Reference: 2-azido-4-nitrophenol(CAS DataBase Reference)
• NIST Chemistry Reference: 2-azido-4-nitrophenol(33354-58-4)
• EPA Substance Registry System: 2-azido-4-nitrophenol(33354-58-4)

Safety Data

• Hazardous Substances Data: 33354-58-4(Hazardous Substances Data)

Usage

InChI:InChI=1/C6H4N4O3/c7-9-8-5-3-4(10(12)13)1-2-6(5)11/h1-3,11H

Upstream product

• 99-57-0 2-hydroxy-5-nitroaniline 

Downstream Products

• 33354-48-2 C₂₄H₁₉N₂O₃P 
• 99-57-0 2-hydroxy-5-nitroaniline 
• 66258-51-3 (2-Hydroxy-5-nitro-phenyl)-phosphoramidic acid dipropyl ester 
• 891-43-0 5-nitro-2-phenylbenzo[d]oxazole 
• 37407-27-5 2-(methylsulfanyl)-4-nitrophenol 

Relevant articles and documents

Catalytic Staudinger/aza-Wittig sequence by in situ phosphane oxide reduction

A Staudinger/aza-Wittig reaction sequence is described that is catalytic in phosphorus. Towards this end, the phosphane oxide is reduced in situ by diphenylsilane, which allows for substoichiometric amounts of the catalyst 5-phenyldibenzophosphole to be used. The substrate scope is investigated and benzoxazoles, benzodiazepine imidates and a 2-methoxypyrrole were successfully synthesized. These investigations show that a fast aza-Wittig reaction is required to obtain high yields. A catalytic Staudinger/aza-Wittig reaction sequence, involving in situ phosphane oxide reduction, was successfully developed. Benzoxazoles, benzodiazepine imidates and 2-methoxypyrrole were synthesized without phosphane oxide waste products. Copyright