Benzoic acid, 4-nitroso- (9CI)

Base Information

• Chemical Name: Benzoic acid, 4-nitroso- (9CI)
• CAS No.: 619-68-1
• Molecular Formula: C7H5NO3
• Molecular Weight: 151.122
• Hs Code.: 2916399090
• Mol file: 619-68-1.mol

Synonyms:4-Nitrosobenzoic acid;pNOBA;Benzoic acid, 4-nitro-;

Chemical Property of Benzoic acid, 4-nitroso- (9CI)

Chemical Property:

• Vapor Pressure: 8.39E-05mmHg at 25°C
• Melting Point: 227-230 °C (decomp)
• Refractive Index: 1.583
• Boiling Point: 327.1 °C at 760 mmHg
• PKA: 3.29±0.10(Predicted)
• Flash Point: 151.6 °C
• PSA: 66.73000
• Density: 1.33 g/cm³
• LogP: 1.78270

Purity/Quality:

99% ^*data from raw suppliers

4-NITROSO-BENZOIC ACID 95.00% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of Benzoic acid, 4-nitroso- (9CI)

There total 9 articles about Benzoic acid, 4-nitroso- (9CI) 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: 100.0%

4-amino-benzoic acid (150-13-0,159246-81-8,8014-65-1) → 4-nitrosobenzoic acid (619-68-1)

Guidance literature:

With oxone||potassium monopersulfate triple salt; In dichloromethane; water; at 20 ℃; for 1h;

DOI:10.1016/j.tet.2009.12.020

Reference yield:

p-nitromandelonitrile (121986-07-0,137766-69-9,13312-80-6) → 4-nitrosobenzoic acid (619-68-1) + 4-nitro-benzoic acid (62-23-7)

Guidance literature:

Reference yield:

4-(hydroxyamino)benzoic acid (13252-71-6) → 4-nitrosobenzoic acid (619-68-1) + 4-amino-benzoic acid (150-13-0,159246-81-8,8014-65-1)

Guidance literature:

iridium; In isopropyl alcohol; Rate constant;

DOI:10.1007/BF00953458

upstream raw materials:

4-nitrosobenzoic acid ethyl ester

4-nitro-benzoic acid

4-(hydroxyamino)benzoic acid

4-nitrobenzaldehdye

Downstream raw materials:

azoxybenzene-4,4'-dicarboxylic acid

4-(2-phenyldiazen-1-yl)benzoic acid

4-(4-sulfamoyl-phenylazo)-benzoic acid

4-(hydroxyamino)benzoic acid

Refernces

Decoupling fluorescence and photochromism in bifunctional azo derivatives for bulk emissive structures

10.1002/chem.201103411

The study focuses on the synthesis and investigation of bifunctional azo derivatives that combine push–pull fluorophores and azo photochromes to create fluorescent structures in thin films upon light-induced migration. The researchers systematically explored the photochromic and emissive properties of these bifunctional molecules and compared them to those of corresponding model compounds. They determined fluorescence lifetimes and photoisomerization and fluorescence quantum yields in toluene solution. The study utilized femtosecond transient absorption spectra to reveal that the fluorophores evolve into a distorted intramolecular charge transfer excited state, competing with energy transfer to the azo moiety. A significant finding was the effectiveness of a 10 ? long rigid and nonconjugated bridge between the photoactive units, which inhibits energy transfer and enhances free volume, favoring photoactivated molecular migration in the solid state. The research provides insights into the design of fluorescent photoswitchable molecules for tracking photomechanically-activated single systems and offers new avenues for the development of azo bulk photomigration.