Detail of "2403-89-6"

CAS Number:
2403-89-6
Name:
1,2,2,6,6-Pentamethyl-4-piperidinol
Molecular Structure:
Formula:
C₁₀H₂₁NO
Molecular Weight:
171.28
Synonyms:
Pentamethylpiperidinol;1,2,2,6,6-Tetramethyl-4-Piperidinol-ol;PAAOL;Pentamethyl Piperidinol;1,2,2,6,6-Pentamethylpiperidin-4-ol;1,2,2,6,6-pentamethyl-4,5-dihydro-3H-pyridin-4-ol;4-Piperidinol, 1,2,2,6,6-pentamethyl-;
EINECS:
219-292-8
Density:
0.895 g/cm³
Melting Point:
72-76 °C
Boiling Point:
229.9 °C at 760 mmHg
Flash Point:
22.8 °C
Appearance:
light yellow flakes
Hazard Symbols:
Xi,C
Risk Codes:
43-34-22
Safety:
36/37-45-36/37/39-26 Details

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Reference

Stabilization of light-sensitive, organic polymers with new alkylated 4-siloxypiperidine derivatives: Stabilization of light-sensitive, organic polymers with new alkylated 4-siloxypiperidine derivatives. Rody, Jean; Greber, Gerd; Mueller, Helmut (Ciba-Geigy A.-G., Switz. 61670-22-2 are also occured in this study.). Ger. Offen. DE 2621842 9 Dec 1976, 38 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: C08K005-34. PRIORITY: CH 75-6831 28 May 1975. DOCUMENT TYPE: Patent CA Section: 36 (Plastics Manufacture and Processing) Section cross-reference(s): 27, 29 Nine compds. such as Ph2Si(OR)2, Me3SiOR, PhSi(OR)3, and HSi(OR)3 with R = 2,2,6,6-tetramethyl-4-piperidyl and 3 compds. such as Ph3SiOR1 (I) [61670-27-7] and (R1OSiMe2)2O [61670-28-8] with R1 = 1,2,2,6,6-pentamethyl-4-piperidyl were useful as light stabilizers for plastics such as polypropylene (II) [9003-07-0]. Thus, 4-hydroxy-1,2,2,6,6-pentamethylpiperidine [2403-89-6] in THF contg. Et3N was treated slowly with Ph3SiCl [76-86-8] to prep. I. II contg. 0.2% antioxidant and 0.5% I was stable for >23,000 h in UV light, compared with 1,050 h without I. .

Alkylene oxide condensates of tetramethylpiperidine alcohols or glycols: Alkylene oxide condensates of tetramethylpiperidine alcohols or glycols. Tanikella, Murty S.; Von Susani, Odorich (du Pont de Nemours, E. I., and Co., USA). U.S. US 3974127 10 Aug 1976, 9 pp. (English). (United States of America). CODEN: USXXAM. CLASS: IC: C08G063-20. NCL: 260075000N. PRIORITY: DE 73-2346734 17 Sep 1973. DOCUMENT TYPE: Patent CA Section: 39 (Textiles) Section cross-reference(s): 27 2,2,6,6-Tetramethylpiperidine alc. or glycol derivs. were prepd., oxyalkylated, copolymd., and the polymers were spun into fibers having improved dyeability. Thus, 500 g (HOCH2CH2O2C)2C6H4-p was prepolymd. in the presence of Sb2O3 (suspended in 20 mL HOCH2CH2OH) and MnHPO4 at 245.There are some reagents with their cas registry numbers 59535-09-0 and 62454-96-0 are used in this study.degree./<2 torr to dist. HOCH2CH2OH, treated with 27.4 g poly(oxyethylene) 1,2,2,6,6-pentamethyl-4-hydroxypiperidine ether (I) [52609-18-4], polymd. at <1 torr, the temp. raised to 285.degree. during 0.5 h, and the mixt. kept at 285.degree./<1 torr for 1 h, and cooled. The polymer was then solid-phase polymd. for 5 days and spun into a 17-filament yarn at 259.degree. (pack-block type) and spinneret temp. 261.degree.. The polymer [62454-96-0] yarn had relative viscosity 14.1. Two-stage drawing gave a yarn of denier 47, tenacity 3.2 g/denier, elongation 30%. Three yarns were plied together to make a fabric (N content 0.145%). Sep. dyeings at pH 3.0, 4.5, or 6.0 with C. I. Acid Blue 25 gave a fabric with a deep blue shade at each pH. I was prepd. by oxyethylation of 1,2,2,6,6-pentamethyl-4-hydroxypiperidine [2403-89-6] which was prepd. by methylation of 2,2,6,6-tetramethylpiperidine [768-66-1] by HCHO [50-00-0] in the presence of HCO2H and NaOH. .

Detail of "2403-89-6"

1,2,2,6,6-Pentamethyl-4-piperidinol

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CAS No.2403-89-6 1,2,2,6,6-Pentamethyl-4-piperidinol

CAS No.2403-89-6 1,2,2,6,6-Pentamethyl-4-piperidinol

CAS No.2403-89-6 1,2,2,6,6-Pentamethyl-4-piperidinol

CAS No.2403-89-6 1,2,2,6,6-Pentamethyl-4-piperidinol

CAS No.2403-89-6 1,2,2,6,6-Pentamethyl-4-piperidinol

CAS No.2403-89-6 1,2,2,6,6-Pentamethyl-4-piperidinol

CAS No.2403-89-6 1,2,2,6,6-Pentamethyl-4-piperidinol

CAS No.2403-89-6 1,2,2,6,6-Pentamethyl-4-piperidinol

CAS No.2403-89-6 1,2,2,6,6-Pentamethyl-4-piperidinol

CAS No.2403-89-6 1,2,2,6,6-Pentamethyl-4-piperidinol

CAS No.2403-89-6 1,2,2,6,6-Pentamethyl-4-piperidinol

CAS No.2403-89-6 1,2,2,6,6-Pentamethyl-4-piperidinol

CAS No.2403-89-6 1,2,2,6,6-Pentamethyl-4-piperidinol

CAS No.2403-89-6 1,2,2,6,6-Pentamethyl-4-piperidinol

CAS No.2403-89-6 1,2,2,6,6-Pentamethyl-4-piperidinol

CAS No.2403-89-6 1,2,2,6,6-Pentamethyl-4-piperidinol

CAS No.2403-89-6 1,2,2,6,6-Pentamethyl-4-piperidinol

CAS No.2403-89-6 1,2,2,6,6-Pentamethyl-4-piperidinol

CAS No.2403-89-6 1,2,2,6,6-Pentamethyl-4-piperidinol

CAS No.2403-89-6 1,2,2,6,6-Pentamethyl-4-piperidinol

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