发明名称 |
Process for the preparation of hydroxy methylthiobutyric acid esters |
摘要 |
A process for the preparation of 2-hydroxy-4-methylthiobutyric acid ester which comprises (a) a first step of reacting 2-hydroxy-4-methylthiobutyronitrile with sulphuric acid to produce 2-hydroxy-4-methylthiobutyramide, and (b) a second step of reacting the 2-hydroxy-4-methylthiobutyramide with an alcohol to produce a 2-hydroxy-4-methylthiobutyric acid ester, the two steps being carried out in the same reaction medium.
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申请公布号 |
US6479695(B1) |
申请公布日期 |
2002.11.12 |
申请号 |
US20010937702 |
申请日期 |
2001.12.28 |
申请人 |
AVENTIS ANIMAL NUTRITION, S.A. |
发明人 |
GARRAIT MICHEL;CASSE CLAUDE;GROS GEORGES |
分类号 |
C07C319/20;C07C323/52;(IPC1-7):C07C321/00;C07C323/00;C07C381/00;A23L383/00 |
主分类号 |
C07C319/20 |
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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