发明名称 Vapor/liquid phase methylation of non-alpha-tocopherol.
摘要 <p>This invention relates to the production of alpha-tocopherol from non-alpha-tocopherol homologues by contacting the non-alpha-tocopherol homologue with an alkylation agent such as methanol, formaldehyde, or dimethyl ether for a sufficient length of time at a temperature in the range of from about 300 DEG Centigrade to about 550 DEG C in the presence of an alkylation catalyst. Methylation will occur in a substantial amount, producing alpha-tocopherol.</p>
申请公布号 EP0176690(A1) 申请公布日期 1986.04.09
申请号 EP19850109467 申请日期 1985.07.27
申请人 HENKEL CORPORATION (A DELAWARE CORP.) 发明人 SWANSON, RONALD R.
分类号 C07D311/72;(IPC1-7):C07D311/72;C07B37/04 主分类号 C07D311/72
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