发明授权
US4538002A Process for the production of hydroxyanisole and alkylated
hydroxyanisoles
失效
制备羟基苯甲醚和烷基化羟基苯甲醚的方法
- 专利标题: Process for the production of hydroxyanisole and alkylated hydroxyanisoles
- 专利标题(中): 制备羟基苯甲醚和烷基化羟基苯甲醚的方法
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申请号: US649231申请日: 1984-09-10
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公开(公告)号: US4538002A公开(公告)日: 1985-08-27
- 发明人: Howard A. Colvin , Joel Muse, Jr. , William S. Hollingshead
- 申请人: Howard A. Colvin , Joel Muse, Jr. , William S. Hollingshead
- 申请人地址: OH Akron
- 专利权人: The Goodyear Tire & Rubber Company
- 当前专利权人: The Goodyear Tire & Rubber Company
- 当前专利权人地址: OH Akron
- 主分类号: B01J23/00
- IPC分类号: B01J23/00 ; C07B61/00 ; C07C27/00 ; C07C37/00 ; C07C39/19 ; C07C41/00 ; C07C41/16 ; C07C41/26 ; C07C41/30 ; C07C43/23 ; C07C67/00 ; C07C41/18
摘要:
There is disclosed a process for the production of alkylated hydroxyanisoles which consists of dehydrogenating para-isopropylphenol to para-isopropenylphenol which is then reacted with a methylating agent to yield para-isopropenylanisole which is then treated with acidic hydrogen peroxide to yield para-hydroxyanisole which is then treated with an alkylating agent to yield the alkylated hydroxyanisole. The process of this invention is especially useful for the synthesis of the food preservative butylated hydroxyanisole (BHA).
公开/授权文献
- US5384014A Apparatus and method for thickening pulp and paper stock 公开/授权日:1995-01-24
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