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Sigma-Aldrich

4-Hydroxy-TEMPO benzoate, free radical

97%

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

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

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1 of 4

This Item
390380382000163945
4-Acetamido-TEMPO, free radical 97%

390380

4-Acetamido-TEMPO, free radical

4-Carboxy-TEMPO, free radical 97%

382000

4-Carboxy-TEMPO, free radical

4-Amino-TEMPO, free radical 97%

163945

4-Amino-TEMPO, free radical

mp

99-101 °C (lit.)

mp

143-145 °C (lit.)

mp

185-189 °C (lit.)

mp

~0 °C (lit.)

form

solid

form

powder

form

-

form

solid

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.

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)


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