Suxemerid → Bis(2,2,6,6-tetramethyl-4-piperidyl) succinate

HRID 1086258

Reaktionsgleichung

Reaktionsgleichung von HRID 1086258
[C:1]([O:18][CH:19]1[CH2:24][C:23]([CH3:26])([CH3:25])[NH:22][C:21]([CH3:28])([CH3:27])[CH2:20]1)(=[O:17])[CH2:2][CH2:3][C:4]([O:6][CH:7]1[CH2:12][C:11]([CH3:14])([CH3:13])[NH:10][C:9]([CH3:16])([CH3:15])[CH2:8]1)=[O:5].OC1CC(C)(C)NC(C)(C)C1.C([O-])(=O)CCCC([O-])=O.[C:49]([O:67][CH:68]1[CH2:73][C:72]([CH3:75])([CH3:74])[N:71](C)[C:70]([CH3:78])([CH3:77])[CH2:69]1)(=[O:66])[CH2:50][CH2:51][C:52](OC1CC(C)(C)N(C)C(C)(C)C1)=O>>[C:1]([O:18][CH:19]1[CH2:24][C:23]([CH3:26])([CH3:25])[NH:22][C:21]([CH3:28])([CH3:27])[CH2:20]1)(=[O:17])[CH2:2][CH2:3][C:4]([O:6][CH:7]1[CH2:8][C:9]([CH3:16])([CH3:15])[NH:10][C:11]([CH3:14])([CH3:13])[CH2:12]1)=[O:5].[C:4]([O:6][CH:7]1[CH2:12][C:11]([CH3:14])([CH3:13])[NH:10][C:9]([CH3:16])([CH3:15])[CH2:8]1)(=[O:5])[CH2:52][CH2:51][CH2:50][C:49]([O:67][CH:68]1[CH2:69][C:70]([CH3:77])([CH3:78])[NH:71][C:72]([CH3:74])([CH3:75])[CH2:73]1)=[O:66]

Komponenten

6

Edukt 4

HCID 71419SuxemeridHCID 754714-Hydroxy-2,2,6,6-tetramethylpiperidineHCID 93340Bis(2,2,6,6-tetramethyl-4-piperidyl) succinateHCID 4418048Glutarate(2-)

Produkt 2

HCID 93340Bis(2,2,6,6-tetramethyl-4-piperidyl) succinateHCID 14389745Bis(2,2,6,6-tetramethylpiperidin-4-yl) pentanedioate

Versuchsvorschrift

The use of di-(2,2,6,6-tetramethyl-4-piperidinyl) succinate as a light stabilizer for synthetic rubber latices containing TiO2 is suggested in Japanese Patent A-84/53545. The compound is mentioned there, but is not described in detail. Both compounds can be prepared process of U.S. application No. 3,840,494 by transesterifying 4-hydroxy-2,2,6,6-tetramethylpiperidine with a dialkyl succinate or glutarate, respectively. The homologous di-(1,2,2,6,6-pentamethyl-4-piperidinyl) succinate is also mentioned in U.S. application No. 3,840,494. Owing to its low melting point, however, this compound is not very suitable for use as a stabilizer for thermoplastic polymers. In contrast, di-(2,2,6,6-tetramethyl-4-piperidinyl) succinate melts at 118° C. and di-(2,2,6,6-tetramethyl-4-piperidinyl) glutarate melts at 83°-84° C., as a result of which dry mixing with the powdered or granulated thermoplastic polymer is possible.

Aufarbeitung

  1. customBoth compounds can be prepared process of U.S

Quellen und Nachweise

ORD-Eintrag
ord-fa40a0c0c1e6421199312155069e9417
Quelldatensatz
uspto-grants-1991_07
Patentnummer
US05028645

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