发明名称 |
ACETALSULFONATE DERIVATIVE, PROCESS FOR PRODUCING THE SAME, AND PROCESS FOR PRODUCING STYRENE OXIDE DERIVATIVE |
摘要 |
<p>There are provided an acetalsulfonate derivative useful as an intermediate for medicines and agricultural chemicals, a process for industrially producing the derivative, and a process for industrially producing a styrene oxide derivative from the acetalsulfonate derivative or from a mandelic acid derivative. A process for producing an acetalsulfonate derivative which comprises a first step of esterifying a mandelic acid derivative to form a mandelic ester derivative, a second step of protecting the mandelic ester derivative by an acetal to form an acetal derivative, a third step of reducing the acetal derivative to form an ethanediol derivative and a fourth step of reacting the ethanediol derivative with a sulfonyl chloride derivative. A process for producing a styrene oxide derivative which comprises a deprotecting step of deacetalizing the acetalsulfonate derivative and a step of epoxidizing the sulfonate derivative obtained in the deprotecting step with the aid of a base catalyst.</p> |
申请公布号 |
EP1236714(A1) |
申请公布日期 |
2002.09.04 |
申请号 |
EP20000977983 |
申请日期 |
2000.11.28 |
申请人 |
MITSUBISHI RAYON CO., LTD. |
发明人 |
MORI, HIROYUKI;MORITA, HIKARI;KOBAYASHI, YOSHIMASA |
分类号 |
C07C309/73;C07C303/28;C07C303/30;C07C309/66;C07D301/28;C07D309/12;(IPC1-7):C07C309/66 |
主分类号 |
C07C309/73 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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