2,2,6,6-Tetramethylpiperidine, 98+%

CAS Number 768-66-1

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2,2,6,6-Tetramethylpiperidine, 98+%

MDL: MFCD00005985
EINECS: 212-199-3

Chemical Properties

Formula: C9H19N  Flash point: 34°(93°F)
Formula weight: 141.26  Density: 0.832
Melting point: -59° Refractive Index: 1.4440
Boiling point: 152-154° Sensitivity: Air Sensitive

Literature References

Lithiation gives a highly-hindered, non-nucleophilic strong base; see, e.g. Org. Synth. Coll., 6, 571 (1988); 9, 426 (1998); Tetrahedron, 50, 3099 (1994). For use in selective isomerization of epoxides to aldehydes, see: J. Chem. Soc., Chem. Commun., 2103 (1994). For a study of the influence of TMEDA and related chelating ligands on the solution structure of the lithiated base, see: J. Org. Chem., 62, 5748 (1997). The Mg derivative, obtained by reaction with n-BuMgCl, is also an effective strong base which has been used in the regioselective ortho-metallation of pyridine carbamates and carboxamides: J. Org. Chem., 60, 8414 (1995).

GHS Hazard and Precautionary Statements

Hazard Statements : H314-H318-H226-H302

Causes severe skin burns and eye damage. Causes serious eye damage. Flammable liquid and vapour. Harmful if swallowed.

Precautionary Statements : P280-P305+P351+P338-P309-P310

Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF exposed or if you feel unwell: Immediately call a POISON CENTER or doctor/physician.

FlammableCorrosiveHarmful or Irritant

Other References

Beilstein: 103296
UN#: UN2733
Hazard Class: 3
Packing Group: III
Harmonized Tariff Code: 2933.39
RTECS: TN4220000
2,2,6,6-Tetramethylpiperidine, 98+% - CAS 768-66-1 - Formula C9H19N


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