Hydroxyaminomethylphosphonates and stabilized compositions

Details Hydroxyaminomethylphosphonates and stabilized compositions Hydroxyaminomethylphosphonates and stabilized compositions

1990-04-06

1991-12-31

Hoke, Veronica P.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

252 499, 2603985, 524131, 558158, 558175, 558404, 558405, C07F 940, C08K 55353

Patent

active

050773291

ABSTRACT:
Hydroxyaminomethylphosphonates of formula I ##STR1## where R.sub.1 to R.sub.5 are independently hydrogen, alkyl, cycloalkyl, aryl or phenylalkyl, R.sub.6 has the same meanings except for hydrogen, and R.sub.1 can also be trialkylsilyl, are useful stabilizers for organic materials subject to oxidative, thermal or actinic induced degradation.

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A. Alberti et al., Tetrahedron, 40, 4955 (1984).
J. M. J. Tronchet et al., Carbohydrate Research 136, 375 (1985).
R. Huber et al. (A. Vasella et al.), Helv. Chim. Acta, 68, 1730 (1985).
Y. Yamada et al., Tetrahedron Letters, 29, 663 (1988).

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