1033-85-8

Basic information

• Product Name: Benzoxazole, 2-(4-methoxyphenyl)-5-nitro-
• CAS NO: 1033-85-8
• Molecular Formula: C14H10N2O4
• Molecular Weight: 270.244
• Mol File: 1033-85-8.mol
• Article Data: 10

Chemical Properties

• CAS DataBase Reference: Benzoxazole, 2-(4-methoxyphenyl)-5-nitro-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzoxazole, 2-(4-methoxyphenyl)-5-nitro-(1033-85-8)
• EPA Substance Registry System: Benzoxazole, 2-(4-methoxyphenyl)-5-nitro-(1033-85-8)

Safety Data

• Hazardous Substances Data: 1033-85-8(Hazardous Substances Data)

Upstream product

• 29644-86-8 2-(4-methoxy-benzylidenamino)-4-nitro-phenol 
• 123-11-5 4-methoxy-benzaldehyde 
• 99-57-0 2-hydroxy-5-nitroaniline 
• 123-08-0 4-hydroxy-benzaldehyde 
• 369-36-8 6-fluoro-3-nitroaniline 
• 100-07-2 4-methoxy-benzoyl chloride 
• 213468-59-8 S-methyl 3-oxo-3-(4-methoxylphenyl)propanedithioate 
• 70886-33-8 5-nitro-benzooxazole 

Downstream Products

• 54995-53-8 2-(4-methoxyphenyl)benzo[d]oxazol-5-amine 

Relevant articles and documents

Direct and practical synthesis of 2-arylbenzoxazoles promoted by activated carbon

(Matrix presented) 2-Arylbenzoxazoles were directly synthesized from substituted 2-aminophenols and aldehydes in the presence of activated carbon (Darco KB) in xylene under an oxygen atmosphere.

Phosphonium acidic ionic liquid: An efficient and recyclable homogeneous catalyst for the synthesis of 2-Arylbenzoxazoles, 2-Arylbenzimidazoles, and 2-Arylbenzothiazoles

A highly efficient and green strategy for the synthesis of 2-Arylbenzoxazoles, 2-Arylbenzimidazoles, and 2-Arylbenzothiazoles catalyzed by phosphonium acidic ionic liquid has been developed via the condensation of o-Aminophenol, o-phenylenediamines, and o-Aminothiophenol, respectively, with aldehydes. The reaction has a good yield, the broad substrate scope, and mild condition. Triphenyl(butyl-3-sulphonyl)phosphonium toluenesulfonate catalyst was easily obtained from cheap and available starting materials through a one-pot synthesis. Its structure was identified by 1H NMR, 13C NMR, 31P NMR, and FT-IR techniques. Other properties including thermal stability and acidity were determined by TGA and Hammett acidity function method. Interestingly, the catalyst can maintain its constantly outstanding performance till the fourth recovery.

Deep eutectic solvent-catalyzed arylation of benzoxazoles with aromatic aldehydes

A novel and efficient methodology for the arylation of benzoxazoles with aromatic aldehydes catalyzed by deep eutectic solvent has been developed. The reaction smoothly proceeded with a wide range of substrates to give the desired products in high yields within short reaction time. Deep eutectic solvents are easily recovered and reused without significant loss of catalytic activity.

p-Toluenesulfonic acid-catalyzed metal-free formal [4?+?1] heteroannulation via N[sbnd]H/O[sbnd]H/S[sbnd]H functionalization: One-pot access to 2-aryl/hetaryl/alkyl benzazole derivatives

A concise and direct one-pot [4?+?1] synthetic strategy for the construction of 2-substituted benzazoles such as benzoxazoles and benzothiazoles has been disclosed in high yields (80–98%) by cascade coupling reaction of 2-amino(thio)phenols with β-oxodithioesters. The current approach enables N[sbnd]H/O[sbnd]H/S[sbnd]H functionalization in one-pot under solventless condition leading to diverse benzazoles without use of any external metal. A wide range of 2-amino(thio)phenols and β-oxodithioesters are compatible toward this transformation with excellent functional group tolerance. Furthermore, we preempt the wider implications of this novel strategy by demonstrating its compatibility toward versatile diversification of DNA Topoisomerase-II inhibitors.