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426369

Sigma-Aldrich

TEMPO

purified by sublimation, 99%

Synonyme(s) :

2,2,6,6-Tetramethylpiperidine 1-oxyl, 2,2,6,6-Tetramethyl-1-piperidinyloxy, free radical, TEMPO

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About This Item

Formule empirique (notation de Hill):
C9H18NO
Numéro CAS:
2564-83-2
Poids moléculaire :
156.25
Numéro Beilstein :
1422418
Numéro CE :
219-888-8
Numéro MDL:
MFCD00009599
Code UNSPSC :
12352119
ID de substance PubChem :
24866699
Nomenclature NACRES :
NA.22

Niveau de qualité

200

Pureté

99%

Forme

solid

Produit purifié par

sublimation

Pertinence de la réaction

reagent type: oxidant

Pf

36-38 °C (lit.)

Température de stockage

2-8°C

Chaîne SMILES 

CC1(C)CCCC(C)(C)N1[O]

InChI

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

Clé InChI

QYTDEUPAUMOIOP-UHFFFAOYSA-N

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Description générale

For a synthetic protocol using NMP initiators, contributed by Prof. Karen Wooley, please visit our technology spotlight.

Application

Stable nitroxide radical useful in controlling living polymerizations
TEMPO (2,2,6,6-Tetramethyl-1-piperidinyloxy) was used for trapping the styrenyl radical generated from benzoyl peroxide during nitroxide-mediated radical polymerization of styrene. TEMPO-mediated oxidation was employed for the carboxylation of water-resistant nanofibrillated cellulose (NFC) films.

Pictogrammes

Corrosion
GHS05

Mention d'avertissement

Danger

Mentions de danger

H314,H412

Classification des risques

Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1C

Code de la classe de stockage

8A - Combustible corrosive hazardous materials

Classe de danger pour l'eau (WGK)

WGK 2

Point d'éclair (°F)

152.6 °F - closed cup

Point d'éclair (°C)

67 °C - closed cup

Équipement de protection individuelle

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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Certificats d'analyse (COA)

Lot/Batch Number
0000373186
0000373184
0000296864
0000324611
0000373186

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MitoTEMPO ≥98% (HPLC)

Sigma-Aldrich

SML0737

MitoTEMPO

4-Acetamido-2,2,6,6-tetramethylpiperidine 1-oxyl purum, ≥98.0% (HPLC)

Sigma-Aldrich

00375

4-Acetamido-2,2,6,6-tetramethylpiperidine 1-oxyl

4-Oxo-TEMPO-d16, free radical for ESR-spectroscopy, 97 atom % D

Sigma-Aldrich

485268

4-Oxo-TEMPO-d16, free radical

Block copolymer synthesis using a commercially available nitroxide-mediated radical polymerization (NMP) initiator.
Lee NS and Wooley KL.
Material Matters, 5, 8-15 (2010)
Akira Isogai et al.
Nanoscale, 3(1), 71-85 (2010-10-20)
Native wood celluloses can be converted to individual nanofibers 3-4 nm wide that are at least several microns in length, i.e. with aspect ratios>100, by TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl radical)-mediated oxidation and successive mild disintegration in water. Preparation methods and fundamental characteristics
Jessica M Hoover et al.
Journal of the American Chemical Society, 135(6), 2357-2367 (2013-01-16)
Homogeneous Cu/TEMPO catalyst systems (TEMPO = 2,2,6,6-tetramethylpiperidine-N-oxyl) have emerged as some of the most versatile and practical catalysts for aerobic alcohol oxidation. Recently, we disclosed a (bpy)Cu(I)/TEMPO/NMI catalyst system (NMI = N-methylimidazole) that exhibits fast rates and high selectivities, even
Soham Maity et al.
Journal of the American Chemical Society, 135(9), 3355-3358 (2013-02-15)
Nitroolefin is a common and versatile reagent. Its synthesis from olefin is generally limited by the formation of mixture of cis and trans compounds. Here we report that silver nitrite (AgNO2) along with TEMPO can promote the regio- and stereoselective
Xinwang Cao et al.
Carbohydrate polymers, 90(2), 1075-1080 (2012-07-31)
Cellulose nanowhiskers is a kind of renewable and biocompatible nanomaterials evoke much interest because of its versatility in various applications. Here, for the first time, a novel controllable fabrication of cellulose nanowhiskers from jute fibers with a high yield (over
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Articles

Block copolymer synthesis using a commercially available nitroxide-mediated radical polymerization (NMP) initiator

Block copolymer synthesis using a commercially available nitroxide-mediated radical polymerization (NMP) initiator

Block copolymer synthesis using a commercially available nitroxide-mediated radical polymerization (NMP) initiator

Block copolymer synthesis using a commercially available nitroxide-mediated radical polymerization (NMP) initiator

Block copolymer synthesis using a commercially available nitroxide-mediated radical polymerization (NMP) initiator

Block copolymer synthesis using a commercially available nitroxide-mediated radical polymerization (NMP) initiator

Block copolymer synthesis using a commercially available nitroxide-mediated radical polymerization (NMP) initiator

Block copolymer synthesis using a commercially available nitroxide-mediated radical polymerization (NMP) initiator

Afficher tout

Protocoles

Typical Procedures for Polymerizing via RAFT

We presents an article featuring procedures that describe polymerization of methyl methacrylate and vinyl acetate homopolymers and a block copolymer as performed by researchers at CSIRO.

Concepts and Tools for RAFT Polymerization

We present an article about RAFT, or Reversible Addition/Fragmentation Chain Transfer, which is a form of living radical polymerization.

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