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CAS No.: | 2403-88-5 |
---|---|
Name: | 2,2,6,6-Tetramethyl-4-piperidinol |
Article Data: | 48 |
Molecular Structure: | |
Formula: | C9H19NO |
Molecular Weight: | 157.256 |
Synonyms: | NSC 16575;4-Hydroxyl-2,2,6,6-tetramethyl piperidine;DN 10;DN10 (UV absorber);HOTEMP;HTMP;Lastar A; |
EINECS: | 219-291-2 |
Density: | 0.891 g/cm3 |
Melting Point: | 129-131 °C(lit.) |
Boiling Point: | 214.1 °C at 760 mmHg |
Flash Point: | 53 °C |
Solubility: | water: 130 g/L (23 °C) |
Appearance: | white to slightly beige crystalline powder |
Hazard Symbols: | Xi |
Risk Codes: | 36/37/38 |
Safety: | 26-36 |
PSA: | 32.26000 |
LogP: | 1.61670 |
Conditions | Yield |
---|---|
With sodium tetrahydroborate In ethanol at 20℃; for 4h; | 95% |
With sodium tetrahydroborate In ethanol at 0 - 20℃; for 2h; Inert atmosphere; | 93% |
With sodium tetrahydroborate In ethanol at 0 - 20℃; for 2h; | 93% |
TEMPOL
diazodiphenylmethane
A
4-hydroxy-2,2,6,6-tetramethylpiperidine
B
benzophenone
Conditions | Yield |
---|---|
In acetonitrile Product distribution; Rate constant; Mechanism; Ambient temperature; Irradiation; in chlorobenzene; | A n/a B 87% |
A
4-hydroxy-2,2,6,6-tetramethylpiperidine
B
2,2,2',2',6,6,6'6'-octamethyl-4,4'-dihydroxy-4,4'-bipiperidyl
Conditions | Yield |
---|---|
at 30 - 35℃; for 77.2h; electrochemical reduction at zinc cathode; | A 79% B 12% |
Conditions | Yield |
---|---|
Stage #1: acetone With ammonia In toluene at 50℃; for 3h; Green chemistry; Stage #2: With hydrogen In toluene at 50℃; for 3h; Catalytic behavior; Solvent; Reagent/catalyst; Temperature; Green chemistry; | 77% |
Conditions | Yield |
---|---|
With water In acetone Heating; UV irradiation; | 72% |
2,2,6,6-Tetramethyl-4-piperidone
A
2,2,6,6-tetramethyl-piperidine
B
4-hydroxy-2,2,6,6-tetramethylpiperidine
Conditions | Yield |
---|---|
With sulfuric acid at 25 - 30℃; for 4h; diapraghm electrolyzer, Cd cathode, concentration of II 0.65 mol/l; | A 66.1% B 20% |
With sulfuric acid at 25 - 30℃; for 4h; diapraghm electrolyzer, Cd cathode, concentration of II 1.3 mol/l; | A 27.7% B 54.6% |
With sulfuric acid at 24.85 - 29.85℃; Product distribution; Mechanism; electrochemical reduction (Cd or Pb cathodes, i=100 mA/cn2); var. reagents and temp.; |
1,2,2,6,6-pentamethyl-piperidin-4-ol
acetone
A
4-hydroxy-2,2,6,6-tetramethylpiperidine
B
1-(2-Hydroxy-2-methylpropyl)-2,2,6,6-tetramethyl-4-piperidol
C
4,4'-Dihydroxy-2,2,2',2',6,6,6',6'-octamethyl-1,1'-ethylenebispiperidine
Conditions | Yield |
---|---|
In benzene for 6h; Product distribution; Irradiation; irradiation with mercury quartz lamp; | A 1.4% B 9% C 52% |
In benzene for 7h; Product distribution; Heating; Irradiation; | A 2% B 21% C 51% |
In benzene for 7h; Heating; Irradiation; | A 2% B 21% C 51% |
2,2,6,6-tetramethylpiperidin-4-one hydrochloride
A
4-hydroxy-2,2,6,6-tetramethylpiperidine
B
2,2,6,6-tetramethyl-4-hydroxy-4-(1-hydroxy-1-methylethyl)piperidine
C
2,2,2',2',6,6,6'6'-octamethyl-4,4'-dihydroxy-4,4'-bipiperidyl
Conditions | Yield |
---|---|
With isopropyl alcohol for 22h; Heating; Irradiation; PRK-2 mercury-quartz lamp; | A 52% B 36% C 12% |
2,2,6,6-tetramethylpiperidin-4-one hydrochloride
isopropyl alcohol
A
4-hydroxy-2,2,6,6-tetramethylpiperidine
B
2,2,6,6-tetramethyl-4-hydroxy-4-(1-hydroxy-1-methylethyl)piperidine
C
2,2,2',2',6,6,6'6'-octamethyl-4,4'-dihydroxy-4,4'-bipiperidyl
Conditions | Yield |
---|---|
With isopropyl alcohol for 22h; Heating; Irradiation; PRK-2 mercury-quartz lamp; | A 52% B 36% C 12% |
1,2,2,6,6-pentamethyl-piperidin-4-ol
A
4-hydroxy-2,2,6,6-tetramethylpiperidine
B
1-(2-Hydroxy-2-methylpropyl)-2,2,6,6-tetramethyl-4-piperidol
C
4,4'-Dihydroxy-2,2,2',2',6,6,6',6'-octamethyl-1,1'-ethylenebispiperidine
Conditions | Yield |
---|---|
With acetone In benzene for 7h; Heating; Irradiation; | A 2% B 21% C 51% |
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Product Name: 2,2,6,6-Tetramethyl-4-piperidinol (CAS NO.2403-88-5)
Molecular Formula: C9H19NO
Molecular Weight: 157.25g/mol
Mol File: 2403-88-5.mol
EINECS: 219-291-2
Appearance: white to slightly beige crystalline powder
Melting Point: 129-131 °C(lit.)
Boiling point: 214.1 °C at 760 mmHg
Flash Point: 53 °C
Density: 0.891 g/cm3
Water Solubility: 130 g/L (23 °C)
Index of Refraction: 1.441
Molar Refractivity: 46.64 cm3
Molar Volume: 176.3 cm3
Surface Tension: 28 dyne/cm
Enthalpy of Vaporization: 52.38 kJ/mol
Vapour Pressure: 0.035 mmHg at 25°C
XLogP3-AA: 0.9
H-Bond Donor: 2
H-Bond Acceptor: 2
Structure Descriptors of 2,2,6,6-Tetramethyl-4-piperidinol (CAS NO.2403-88-5):
IUPAC Name: 2,2,6,6-tetramethylpiperidin-4-ol
Canonical SMILES: CC1(CC(CC(N1)(C)C)O)C
InChI: InChI=1S/C9H19NO/c1-8(2)5-7(11)6-9(3,4)10-8/h7,10-11H,5-6H2,1-4H3
InChIKey: VDVUCLWJZJHFAV-UHFFFAOYSA-N
Product Categories: Industrial/Fine Chemicals; Nitrogen cyclic compounds; Miscellaneous; API intermediates
Used as key intermediates for synthesis of hindered amine light stabilizers and hindered amine-type light stabilizer.
Safety Information of 2,2,6,6-Tetramethyl-4-piperidinol (CAS NO.2403-88-5):
Hazard Codes: Xi
Risk Statements: 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36:Wear suitable protective clothing.
RIDADR: UN3259 8/PG 2
WGK Germany: 1
Hazard Note: Irritant
HS Code: 29333999
2,2,6,6-Tetramethyl-4-piperidinol , its CAS NO. is 2403-88-5, the synonyms are ,2,6,6-Tetramethyl-4-hydroxypiperidine ; 2,2,6,6-Tetramethylpiperidin-4-ol ; 4-Piperidinol, 2,2,6,6-tetramethyl- .