3225-26-1

Basic information

• Product Name: 4-BENZOYLOXY-TEMPO
• Synonyms: 4-HYDROXY-2,2,6,6-TETRAMETHYLPIPERIDINE 1-OXYL BENZOATE;4-HYDROXY-TEMPO BENZOATE;4-HYDROXY-TEMPO BENZOATE, FREE RADICAL;4-BENZOYLOXY-TEMPO;4-BENZOYLOXY-TEMPO FREE RADICAL;4-BENZOYLOXY-2,2,6,6-TETRAMETHYLPIPERIDINE 1-OXYL;4-Benzoyloxy-2,2,6,6-tetramethylpiperidinyloxy, free radical~4-Hydroxy-TEMPO benzoate, free radical;4-Benzyloxy-TEMPO,freeradical
• CAS NO: 3225-26-1
• Molecular Formula: C₁₆H₂₂NO₃
• Molecular Weight: 276.35
• Product Categories: Analytical Chemistry;ESR Spectrometry;Oxidation;Spin Labels;Synthetic Organic Chemistry
• Mol File: 3225-26-1.mol
• Article Data: 11

Chemical Properties

• Melting Point: 99-101 °C(lit.)
• Appearance: orange crystalline powder
• Density: 0.001g/cm3 at 20℃
• Vapor Pressure: 11.5Pa at 20℃
• Stability: Stable. Incompatible with strong oxidizing agents.
• BRN: 1431263
• CAS DataBase Reference: 4-BENZOYLOXY-TEMPO(CAS DataBase Reference)
• NIST Chemistry Reference: 4-BENZOYLOXY-TEMPO(3225-26-1)
• EPA Substance Registry System: 4-BENZOYLOXY-TEMPO(3225-26-1)

Safety Data

• Statements: 36/37/38
• Safety Statements: 22-24/25
• WGK Germany: 3
• Hazardous Substances Data: 3225-26-1(Hazardous Substances Data)

Usage

Chemical Properties

orange crystalline powder

Uses

Different sources of media describe the Uses of 3225-26-1 differently. You can refer to the following data:
1. 4-Hydroxy-TEMPO Benzoate, Free Radical is a recycling catalyst in a 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.
2. 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.

General Description

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

InChI:InChI=1/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

Upstream product

• 45985-24-8 TEMPOL 
• 98-88-4 benzoyl chloride 
• 65-85-0 benzoic acid 
• 26275-88-7 4-benzoyloxy-2,2,6,6-tetramethylpiperidine 
• 102-04-5 1,3-Diphenylpropanone 

Downstream Products

• 4972-13-8 4-benzoyloxy-1-hydroxy-2,2,6,6-tetramethylpiperidine 
• 1942-23-0 p,p'-ditolylaminyl radical 
• 36611-02-6 naphthalen-2-yl-phenyl-aminyl 
• 1942-22-9 4,4'-dimethoxydiphenylaminyl radical 
• 114687-22-8 C₂₆H₁₉N₂ 
• 45985-24-8 TEMPOL 
• 26275-88-7 4-benzoyloxy-2,2,6,6-tetramethylpiperidine 

Relevant articles and documents

Full Organic Aqueous Battery Based on TEMPO Small Molecule with Millimeter-Thick Electrodes

Thick electrodes with sodium and even anion intercalation organic compounds integrated in a neutral-pH aqueous battery offer unique advantages in terms of round trip efficiency, environmental impact, and scalability for off- or on-grid renewable energy st

METHOD OF PRODUCING N-OXYL COMPOUND

PROBLEM TO BE SOLVED: To provide a safe and convenient method of producing an N-oxyl compound without using a special reaction device. SOLUTION: A compound represented by a following formula is obtained by the reaction between 4-hydroxy-2,2,6,6-tetramethylpiperidine 1-oxyl and aromatic acid chloride in the presence of tertiary amine (where at least one of R1 and R2 is a group represented by a following formula). COPYRIGHT: (C)2016,JPOandINPIT

Inhibiting polymerization of vinyl aromatic monomers

When a nitroxyl compound is heated in an oxygen-free atmosphere with a vinyl aromatic monomer at 50-140 DEG C. for up to 60 days, it forms an activated inhibitor mixture which is superior to the nitroxyl compound itself in preventing the premature polymerization of a vinyl aromatic monomer during its processing and purification.