103776-53-0

Basic information

• Product Name: Methyl, hydroxy(4-nitrophenyl)- (9CI)
• Synonyms: Methyl, hydroxy(4-nitrophenyl)- (9CI)
• CAS NO: 103776-53-0
• Molecular Formula: C₇H₆NO₃
• Molecular Weight: 0
• Mol File: 103776-53-0.mol
• Article Data: 1

Chemical Properties

• Appearance: /
• CAS DataBase Reference: Methyl, hydroxy(4-nitrophenyl)- (9CI)(CAS DataBase Reference)
• NIST Chemistry Reference: Methyl, hydroxy(4-nitrophenyl)- (9CI)(103776-53-0)
• EPA Substance Registry System: Methyl, hydroxy(4-nitrophenyl)- (9CI)(103776-53-0)

Safety Data

• Hazardous Substances Data: 103776-53-0(Hazardous Substances Data)

Upstream product

• 619-73-8 4-nitrobenzyl chloride 
• 3229-40-1 phthalimide N-oxyl 

Relevant articles and documents

Kinetic Study of the Phthalimide N-Oxyl Radical in Acetic Acid. Hydrogen Abstraction from Substituted Toluenes, Benzaldehydes, and Benzyl Alcohols

The phthalimide N-oxyl (PINO) radical was generated by the oxidation of N-hydroxyphthalimide (NHPI) with Pb(OAc)4 in acetic acid. The molar absorptivity of PINO. is 1.36 × 103 L mol -1 cm-1 at λmax 382 nm. The PINO radical decomposes slowly with a second-order rate constant of 0.6 ± 0.1 L mol-1 s-1 at 25°C. The reactions of PINO . with substituted toluenes, benzaldehydes, and benzyl alcohols were investigated under an argon atmosphere. The second-order rate constants were correlated by means of a Hammett analysis. The reactions with toluenes and benzyl alcohols have better correlations with σ+ (ρ = -1.3 and -0.41), and the reaction with benzaldehydes correlates better with σ (ρ = -0.91). The kinetic isotope effect was also studied and significantly large values of kH/kD were obtained: 25.0 (p-xylene), 27. 1 (toluene), 27.5 (benzaldehyde), and 16.9 (benzyl alcohol) at 25°C. From the Arrhenius plot for the reactions with p-xylene and p-xylene-d10, the difference of the activation energies, EaD - E aH, was 12.6 ± 0.8 kJ mol-1 and the ratio of preexponential factors, AH/AD, was 0.17 ± 0.05. These findings indicate that quantum mechanical tunneling plays an important role in these reactions.