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2,2,6,6-Tetramethylpiperidinooxy (TEMPO)

Product Name: 2,2,6,6-Tetramethylpiperidinooxy (TEMPO)
CAS: 2564-83-2
Purity:
Appearance: orange crystals or powder

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Product Details

Factory supply 2,2,6,6-Tetramethylpiperidinooxy (TEMPO) 2564-83-2 with sufficient production capacity

Molecular Formula:C9H18NO
Molecular Weight:158.264
Appearance/Colour:orange crystals or powder
Vapor Pressure:0.4 hPa (20 °C)
Melting Point:36-38 °C(lit.)
Refractive Index:1.4350 (estimate)
Boiling Point:193 °C
Flash Point:154 °F
PSA：3.24000
Density:1 g/cm³
LogP:2.31290

2,2,6,6-Tetramethylpiperidinooxy(Cas 2564-83-2) Usage

Purification Methods

Purify TEMPO by sublimation (33o, water aspirator) [Hay & Fincke J Am Chem Soc 109 8012 1987, Keana Chem Rev 78 37 1978].

General Description

2,2,6,6-Tetramethylpiperidinooxy (TEMPO) is a stable nitroxide radical widely used in catalysis, dynamic nuclear polarization (DNP) for NMR, and polymer chemistry. It exhibits high reactivity in alcohol oxidation and serves as a key component in biradical systems for enhancing DNP efficiency. TEMPO derivatives can be modified for recyclability in catalytic processes or incorporated into stimuli-responsive polymers, demonstrating versatility in both synthetic and materials applications.

InChI:InChI=1/C9H18NO/c1-8(2)6-5-7-9(3,4)10(8)11/h5-7H2,1-4H3

2564-83-2 Relevant articles

A Structurally Characterized Nonheme Cobalt-Hydroperoxo Complex Derived from Its Superoxo Intermediate via Hydrogen Atom Abstraction

Wang, Chun-Chieh,Chang, Hao-Ching,Lai, Yei-Chen,Fang, Huayi,Li, Chieh-Chin,Hsu, Hung-Kai,Li, Zong-Yan,Lin, Tien-Sung,Kuo, Ting-Shen,Neese, Frank,Ye, Shengfa,Chiang, Yun-Wei,Tsai, Ming-Li,Liaw, Wen-Feng,Lee, Way-Zen

, p. 14186 - 14189 (2016)

Bubbling O2 into a THF solution of CoII(...

Mechanism of electrochemical oxidation of 1-chloro-2,2,6,6- tetramethylpiperidine

Kagan,Yanilkin,Morozov,Nastapova,Zhukova,Kashparov,Kashparova

, p. 1001 - 1003 (2009)

In contrast to 2,2,6,6-tetramethylpiperi...

An Iron(III) Superoxide Corrole from Iron(II) and Dioxygen

Albert, Therese,Goldberg, David P.,Mo?nne-Loccoz, Pierre,Sacramento, Jireh Joy D.,Siegler, Maxime

, (2021/12/03)

A new structurally characterized ferrous...

The effect of viscosity on the coupling and hydrogen-abstraction reaction between transient and persistent radicals

Li, Xiaopei,Kato, Tatsuhisa,Nakamura, Yasuyuki,Yamago, Shigeru

supporting information, p. 966 - 972 (2021/04/29)

The effect of viscosity on the radical t...

Transformation of Formazanate at Nickel(II) Centers to Give a Singly Reduced Nickel Complex with Azoiminate Radical Ligands and Its Reactivity toward Dioxygen

Ar, Deniz,Kilpatrick, Alexander F. R.,Cula, Beatrice,Herwig, Christian,Limberg, Christian

supporting information, p. 13844 - 13853 (2021/05/04)

The heteroleptic (formazanato)nickel bro...

Controlling the Reactivity of a Metal-Hydroxo Adduct with a Hydrogen Bond

Day, Victor W.,Hessefort, Logan,Jackson, Timothy A.,Opalade, Adedamola A.

supporting information, p. 15159 - 15175 (2021/09/29)

The enzymes manganese lipoxygenase (MnLO...

2564-83-2 Process route

: 26864-01-7
2,2,6,6-tetramethylpiperidin-1-oxoammonium chloride

: 7031-93-8
2,2,6,6-tetramethylpiperidin-1-ol

: 2564-83-2,45842-10-2,126517-51-9,25657-03-8,26933-82-4,54637-06-8,64104-42-3
2,2,6,6-Tetramethyl-1-piperidinyloxy free radical

: 93-61-8
N-methyl-N-phenylformamide

: 100-61-8
N-methylaniline

Conditions

Conditions	Yield
With N,N-dimethyl-aniline; In dichloromethane; at -78 ℃; for 0.5h; Further byproducts given;

: 26864-01-7
2,2,6,6-tetramethylpiperidin-1-oxoammonium chloride

: 121-69-7,77733-26-7
N,N-dimethyl-aniline

: 50-00-0,30525-89-4,61233-19-0
formaldehyd

: 7031-93-8
2,2,6,6-tetramethylpiperidin-1-ol

: 2564-83-2,45842-10-2,126517-51-9,25657-03-8,26933-82-4,54637-06-8,64104-42-3
2,2,6,6-Tetramethyl-1-piperidinyloxy free radical

: 93-61-8
N-methyl-N-phenylformamide

: 100-61-8
N-methylaniline