PROCESS FOR PREPARING TETRAKIS(3-(3,5-DI-tert-BUTY

专利名称：PROCESS FOR PREPARING TETRAKIS(3-(3,5-DI-tert-BUTYL-4-HYDROXYPHENYL)PROPIONYLOXYMETHY…

发明人：GOHBAYASHI, Masayoshi,NARITA,

Noritsugu,MARUNO, Makoto

申请号：EP801317.3申请日：19880201公开号：EP0300055B1公开日：19920520

摘要：A process for preparing tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyloxymethyl)methane by conducting an ester-exchange reactionof an alkyl 3-(3,5-di-tert-butyi-4-hydroxyphenyl)propionate with pentaerythritol in thepresence of a basic catalyst, which comprises conducting the reaction in the presence ofan alkyl 3-(3-tert-butyl-4-hydroxyphenyl)propionate. This process ensures preparation oftetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)-propionyloxymethyl)-methane with goodreproducibility in a high yield and as fine particles having good properties and nocoloration.

申请人：YOSHITOMI PHARMACEUTICAL INDUSTRIES, LTD.

地址：35 HIRANOMACHI 3-CHOME HIGASHI-KU; OSAKA-SHI OSAKA 1

代理机构：von Kreisler, Alek, Dipl.-Chem.

更多信息请下载全文后查看