发明授权
US5075493A Process for preparing .alpha., .beta.-unsaturated carboxylic acid ester
失效
制备（ALPHA），（BETA） - 饱和羧酸酯的方法
- 专利标题： Process for preparing .alpha., .beta.-unsaturated carboxylic acid ester
- 专利标题（中）： 制备（ALPHA），（BETA） - 饱和羧酸酯的方法
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申请号： US618040申请日： 1990-11-23
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公开(公告)号： US5075493A公开(公告)日： 1991-12-24
- 发明人: Yoshikazu Shima , Takafumi Abe , Hirofumi Higuchi , Koichi Kida
- 申请人： Yoshikazu Shima , Takafumi Abe , Hirofumi Higuchi , Koichi Kida
- 申请人地址： JPX Tokyo
- 专利权人： Mitsubishi Gas Chemical Company, Inc.
- 当前专利权人： Mitsubishi Gas Chemical Company, Inc.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX2-62751 19900315
- 主分类号： B01J27/053
- IPC分类号： B01J27/053 ; B01J27/16 ; B01J29/08 ; C07B61/00 ; C07C67/327 ; C07C69/54
摘要：
A process for producing .alpha., .beta.-unsaturated carboxylic acid ester which comprises catalytically reacting .alpha.-hydroxycarboxylic acid ester with crystalline aluminosilicate catalyst, and then catalytic reacting the resulting reaction product with solid acid catalyst.According to the process, .alpha., .beta.-unsaturated carboxylic acid ester of a high purity, and a high quality, without by-product, can be produced efficiently.
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