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Merck

426369

TEMPO

greener alternative

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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A propos de cet article

Formule empirique (notation de Hill) :
C9H18NO
Numéro CAS:
Poids moléculaire :
156.25
UNSPSC Code:
12352119
NACRES:
NA.22
PubChem Substance ID:
EC Number:
219-888-8
Beilstein/REAXYS Number:
1422418
MDL number:
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InChI key

QYTDEUPAUMOIOP-UHFFFAOYSA-N

InChI

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

SMILES string

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

assay

99%

form

solid

purified by

sublimation

reaction suitability

reagent type: oxidant

Quality Level

greener alternative product characteristics

Catalysis
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

mp

36-38 °C (lit.)

greener alternative category

storage temp.

2-8°C

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General description

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.

Features and Benefits

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Green Chemistry. This product has been enhanced for catalytic efficiency. Click here for more information.

pictograms

Corrosion

signalword

Danger

hcodes

Hazard Classifications

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

Classe de stockage

8A - Combustible corrosive hazardous materials

wgk

WGK 2

flash_point_f

152.6 °F - closed cup

flash_point_c

67 °C - closed cup

ppe

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


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Consulter la Bibliothèque de documents

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
Hayaka Fukuzumi et al.
Carbohydrate polymers, 93(1), 172-177 (2013-03-08)
Various mechanical disintegration conditions in water were applied to 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-oxidized cellulose to prepare TEMPO-oxidized cellulose nanofibrils (TOCNs) of uniform widths ∼4 nm but with three different average lengths, 200, 680, and 1100 nm. The viscosity average degrees of polymerization
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

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