371343

4-Hydroxy-TEMPO benzoate, free radical

97%

• Synonym(s): 4-Hydroxy-TEMPO benzoate, 4-Hydroxy-2,2,6,6-tetramethylpiperidine 1-oxyl benzoate
• Empirical Formula (Hill Notation): C₁₆H₂₂NO₃
• CAS Number: 3225-26-1
• Molecular Weight: 276.35
• Beilstein/REAXYS Number: 1431263
• MDL number: MFCD00075563
• UNSPSC Code: 12352000
• PubChem Substance ID: 24863101
• NACRES: NA.22

Properties

• assay: 97%
• form: solid
• mp: 99-101 °C (lit.)
• SMILES string: CC1(C)CC(CC(C)(C)N1[O])OC(=O)c2ccccc2
• InChI: 1S/C16H22NO3/c1-15(2)10-13(11-16(3,4)17(15)19)20-14(18)12-8-6-5-7-9-12/h5-9,13H,10-11H2,1-4H3
• InChI key: MJEDTBDGYVATPI-UHFFFAOYSA-N

Description

General description

4-Hydroxy-TEMPO benzoate is a 4-substituted 2,2,6,6-tetramethylpiperidyl-1-oxy (TEMPO) derivative.

Application

4-Hydroxy-TEMPO benzoate was employed as spin probe to investigate the mechanism of synthesis of SBA-15 and to evaluate its surface properties and pore structure by electron paramagnetic resonance spectroscopy (EPR). It was also used for the functionalization of various polydienes (polybutadiene and polyisoprene). Functionalized polydienes were analyzed by gel permeation chromatography.

Recycling catalyst in hypochlorite/bromite-nitroxide oxidizing system for conversion of alcohols to aldehydes, ketones, and carboxylic acids. It circumvents the need to use a catalytic or stoichiometric heavy metal oxidant.

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)