514586
4-甲氧基-四甲基哌啶氧自由基
97%
别名:
4-甲氧基-2,2,6,6-四甲基-1-哌啶氧自由基
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关于此项目
经验公式（希尔记法）:
C10H20NO2
化学文摘社编号:
分子量:
186.27
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352000
MDL number:
产品名称
4-甲氧基-四甲基哌啶氧自由基, 97%
InChI
1S/C10H20NO2/c1-9(2)6-8(13-5)7-10(3,4)11(9)12/h8H,6-7H2,1-5H3
SMILES string
COC1CC(C)(C)N([O])C(C)(C)C1
InChI key
SFXHWRCRQNGVLJ-UHFFFAOYSA-N
assay
97%
mp
40.5-44 °C (lit.)
storage temp.
2-8°C
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Application
4-甲氧基-TEMPO 在通过有氧氧化反应合成 2-取代的苯并恶唑的过程中可用作催化剂。
General description
4-甲氧基-TEMPO（4-甲氧基-2,2,6,6-四甲基-1-哌啶基氧基）是通常用于醇（伯/仲）的氧化反应的氨基甲苯基自由基。它已被提出作为受阻胺光稳定剂（HALS）模型化合物。通过电子自旋共振（ESR）和电喷雾电离质谱（ESI-MS）研究了其与光催化纳米二氧化钛的辐照稀释悬浮液的反应。
存储类别
11 - Combustible Solids
wgk
WGK 3
ppe
dust mask type N95 (US), Eyeshields, Gloves
Efficient aerobic oxidative synthesis of 2-substituted benzoxazoles, benzothiazoles, and benzimidazoles catalyzed by 4-methoxy-TEMPO.
Yong-Xing Chen et al.
Angewandte Chemie (International ed. in English), 47(48), 9330-9333 (2008-10-31)
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
Xican Li et al.
Molecules (Basel, Switzerland), 24(11) (2019-05-31)
To probe the effect of 3',8″-dimerization on antioxidant flavonoids, acacetin and its 3',8″-dimer isoginkgetin were comparatively analyzed using three antioxidant assays, namely, the ·O2- scavenging assay, the Cu2+ reducing assay, and the 2,2'-azino bis(3-ethylbenzothiazolin-6-sulfonic acid) radical scavenging assay. In these
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
Xiaoqing Guo et al.
Toxicological sciences : an official journal of the Society of Toxicology, 163(1), 214-225 (2018-02-01)
TEMPO (2, 2, 6, 6-tetramethylphiperidine-1-oxyl) and its derivatives are stable free radical nitroxides widely used in the field of chemistry, biology, and pharmacology. TEMPO was previously found to be mutagenic and to induce micronuclei in mammalian cells. In this study
商品
TEMPO（2,2,6,6-四甲基哌啶氧基或2,2,6,6-四甲基哌啶1-氧基）及其衍生物在有机氧化反应催化剂中可以作为稳定的硝酰基使用。TEMPO由Lebedev和Kazarnovskii于1960年发现，其具有的稳定自由基性质得益于其庞大的取代基团阻碍了自由基与其他分子之间发生反应。
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