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Merck

115754

2,2,6,6-Tetramethylpiperidine

≥99%

Synonym(s):

2,2,6,6-tetramethylpiperidide, 2,2,6,6-tetramethylpiperidine, Norpempidine, TEMP, TMPH

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About This Item

Empirical Formula (Hill Notation):
C9H19N
CAS Number:
768-66-1
Molecular Weight:
141.25
UNSPSC Code:
12352005
NACRES:
NA.22
PubChem Substance ID:
24847237
EC Number:
212-199-3
Beilstein/REAXYS Number:
103296
MDL number:
MFCD00005985
Assay:
≥99%

Key Documents

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Product Name

2,2,6,6-Tetramethylpiperidine, ≥99%

InChI key

RKMGAJGJIURJSJ-UHFFFAOYSA-N

InChI

1S/C9H19N/c1-8(2)6-5-7-9(3,4)10-8/h10H,5-7H2,1-4H3

SMILES string

CC1(C)CCCC(C)(C)N1

assay

≥99%

refractive index

n20/D 1.445 (lit.)

bp

152 °C (lit.)

density

0.837 g/mL at 25 °C (lit.)

Quality Level

200

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Application

2,2,6,6-Tetramethylpiperidine can be used as a reactant to synthesize:
  • Allylated tertiary amines via allylic amination of allylic chlorides.
  • Hydroxylamines via oxidation in the presence of oxone as an oxidant.
  • Sulfenamide compounds by reacting with heterocyclic thiols in the presence of iodine as an oxidant.
  • N-methylated amines via N-methylation by reacting with CO2 and phenylsilane.
  • Propargylamines via three-component Mannich coupling reaction with aldehydes and alkynes.

General description

2,2,6,6-Tetramethylpiperidineis a hindered secondary amine that is used to prepare metallo-amide bases and selective generation of silylketene acetals.

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Met. Corr. 1 - Skin Corr. 1A - STOT SE 3

target_organs

Respiratory system

Storage Class

3 - Flammable liquids

wgk

WGK 2

flash_point_f

98.6 °F - closed cup

flash_point_c

37 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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Certificates of Analysis (COA)

Lot/Batch Number
SDBB0725
STBL1140
0000181359
0000172914
0000151507

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