FIELD: organic chemistry, chemical technology.
SUBSTANCE: invention relates to sterically hindered amines substituted with groups -O-E-OH- at N-atom. Sterically hindered amines are especially effective for stabilization of polyolefins and compositions used for car tires and directed against undesirable effect of oxygen, high temperatures and photochemically active radiation wherein the presence of OH-group in these compounds provides their important properties that are absent in using common groups -O-E-. These compounds are prepared by reaction of the corresponding N-oxyl compound with alcohol in the presence of peroxide or organic hydroperoxide and catalytic amount of metal salt or metal-ligand complex.
EFFECT: improved preparing method, valuable properties of compounds.
23 cl, 7 tbl, 221 ex
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Authors
Dates
2004-12-27—Published
2000-02-25—Filed