4-ACETAMIDO-TEMPO
Synonym(s):4-Acetamido-2,2,6,6-tetramethylpiperidine 1-oxyl
- CAS NO.：14691-89-5
- Empirical Formula: C11H21N2O2*
- Molecular Weight: 213.3
- MDL number: MFCD00043593
- EINECS: 423-840-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:26:46
What is 4-ACETAMIDO-TEMPO?
Chemical properties
ORANGE-RED CRYSTALLINE POWDER
The Uses of 4-ACETAMIDO-TEMPO
4-Acetamido-TEMPO, free radical oxidizes alcohols to carbonyl compounds in the presence of TsOH.
General Description
4-Acetamido-2,2,6,6-tetramethylpiperidine 1-oxyl undergoes one-electron oxidation and reduction reactions. Reaction products were analyzed by 1H, 13C and 15N NMR spectral data.
Purification Methods
Dissolve the 1-oxyl in CH2Cl2, wash it with saturated K2CO3, then saturated aqueous NaCl, dry (Na2SO4), filter and evaporate. The red solid is recrystallised from aqueous MeOH, m 147.5o. [Ma & Bobbitt J Org Chem 56 6110 1991, Rozantsev & Kokhanov Bull Acad Sci USSR, Div Chem Sci 15 1422 1966, Beilstein 22/8 V 174.]
Properties of 4-ACETAMIDO-TEMPO
| Melting point: | 143-145 °C (lit.)
143-146 °C |
| Boiling point: | 353.29°C (rough estimate) |
| Density | 1.0451 (rough estimate) |
| refractive index | 1.4620 (estimate) |
| storage temp. | 2-8°C |
| solubility | Soluble in ethanol, acetone, acetonitrile, methylene chloride. Insoluble in hexane, ether. |
| form | powder to crystaline |
| color | Light yellow to Brown |
| BRN | 3546225 |
| CAS DataBase Reference | 14691-89-5(CAS DataBase Reference) |
| EPA Substance Registry System | 1-Piperidinyloxy, 4-(acetylamino)-2,2,6,6-tetramethyl- (14691-89-5) |
Safety information for 4-ACETAMIDO-TEMPO
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral |
| Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P501:Dispose of contents/container to..… |
Computed Descriptors for 4-ACETAMIDO-TEMPO
4-ACETAMIDO-TEMPO manufacturer
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