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4-Methoxy-TEMPO
97%
Synonym(e):
4-Methoxy-2,2,6,6-tetramethyl-1-piperidinyloxy, freies Radikal
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About This Item
Empirische Formel (Hill-System):
C10H20NO2
CAS-Nummer:
Molekulargewicht:
186.27
MDL-Nummer:
UNSPSC-Code:
12352000
PubChem Substanz-ID:
NACRES:
NA.22
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Assay
97%
mp (Schmelzpunkt)
40.5-44 °C (lit.)
Lagertemp.
2-8°C
SMILES String
COC1CC(C)(C)N([O])C(C)(C)C1
InChI
1S/C10H20NO2/c1-9(2)6-8(13-5)7-10(3,4)11(9)12/h8H,6-7H2,1-5H3
InChIKey
SFXHWRCRQNGVLJ-UHFFFAOYSA-N
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Allgemeine Beschreibung
4-Methoxy-TEMPO (4-methoxy-2,2,6,6-tetramethyl-1-piperidinyloxy) is an aminoxyl free radical commonly employed for the oxidation reaction of alcohols (primary/secondary).[1] It has been proposed as hindered amine light stabiliser (HALS) model compound. Its reaction with irradiated dilute aqueous suspensions of photocatalytic nanoparticulate titanium dioxide was investigated by electron spin resonance (ESR) and electrospray ionization mass-spectrometry (ESI-MS).[2]
Anwendung
4-Methoxy-TEMPO may be employed as catalyst for the synthesis of 2-substituted benzoxazoles, via aerobic oxidation reaction.[1]
Lagerklassenschlüssel
11 - Combustible Solids
WGK
WGK 3
Persönliche Schutzausrüstung
dust mask type N95 (US), Eyeshields, Gloves
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David L Marshall et al.
Organic & biomolecular chemistry, 9(13), 4936-4947 (2011-05-21)
Potenital pathways for the deactivation of hindered amine light stabilisers (HALS) have been investigated by observing reactions of model compounds--based on 4-substituted derivatives of 2,2,6,6-tetramethylpiperidine-N-oxyl (TEMPO)--with hydroxyl radicals. In these reactions, dilute aqueous suspensions of photocatalytic nanoparticulate titanium dioxide were
Y C Liu et al.
Science in China. Series B, Chemistry, life sciences & earth sciences, 32(8), 937-947 (1989-08-01)
The kinetics of reduction of nitroxides including 4-hydroxy-TEMPO, 4-methoxy-TEMPO and 4-hexanoyloxy-TEMPO, which are of different lipophilicities, by vitamin C in cationic, non-ionic and anionic micelles, i.e. CTAB, Triton X-100 and SDS, respectively, have been studied by FSR spectroscopy by a
Kevin M Church et al.
Nucleosides, nucleotides & nucleic acids, 23(11), 1723-1738 (2004-12-16)
Our work outlines the use of oxoammonium salts in a formal 1,2 addition process to olefins giving nucleoside analogs as products. Specifically, oxoammonium salts can be added to a solution of olefin and silylated heterocycle to give Methoxy TEMPO substituted
D Metodiewa et al.
Anticancer research, 19(6B), 5259-5264 (2000-03-04)
A stable nitroxide radical named Metexyl (4-methoxy-2,2,6,6-tetramethylpiperidine-1-oxyl) was synthesized and its antioxidant and antitumor properties were investigated and compared with these of another nitroxide derivatives previously designed in our laboratories. Three experimental models were used: xanthine/xanthine oxidase system, pulse radiolysis
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