β-Hydroxyalkylation of sterically hindered phenols with epoxides in acid medium
作者:A. P. Krysin、S. A. Amitina、T. G. Egorova、V. G. Vasiliev
DOI:10.1134/s1070363211020125
日期:2011.2
HPLC-MS method the directions of the side reactions were explored. The method has been successfully tested in a pilot installation. With 2,6-dimethylphenol instead of 2,6-di-tert-butylphenol a sharp increase occurs in the content of ethers in the reaction product. With epichlorohydrin, 2,6-di-tert-butylphenol affords a product, which is easily converted into an epoxide containing a sterically hindered phenol
Selected oxyalkylated 2,6-dialkylphenol compounds and their use as stabilizers of organic materials against oxidative degradation
申请人:OLIN CORPORATION
公开号:EP0209229A1
公开(公告)日:1987-01-21
Disclosed are bis(4-oxyalkylated-2,6-dialkylphenol) adducts of ethylenediaminetetraacetic acid having the formula:
wherein each R is a 2,6-dialkyl moiety having the formula:
wherein each R₁ is selected from the group consisting of branched alkyl groups having from about 4 to about 8 carbon atoms and R₂ is selected from the group consisting of hydrogen, a methyl group and an ethyl group.
These compounds are useful as stabilizers in organic materials against oxidative degradation.
Selected oxyalkylated 2,6-dialkylphenol compounds and their use as
申请人:Olin Corporation
公开号:US04603161A1
公开(公告)日:1986-07-29
Disclosed are bis(4-oxyalkylated-2,6-dialkylphenol) adducts of ethylenediaminetetraacetic acid having the formula: ##STR1## wherein each R is a 2,6-dialkyl moiety having the formula: ##STR2## wherein each R.sub.1 is selected from the group consisting of branched alkyl groups having from about 4 to about 8 carbon atoms and R.sub.2 is selected from the group consisting of hydrogen, a methyl group and ethyl group. These compounds are useful as stabilizers in organic materials against oxidative degradation.