发明名称 |
PROCESS FOR THE RACEMIZATION OF OPTICALLY ACTIVE 1-ARYL-ALKYLAMINES |
摘要 |
A new process for the racemization of optically active 1-aryl-alkylamines of the formula (I) <IMAGE> (I) in which Ar represents optionally substituted aryl and R represents alkyl, which is characterized in that compounds of the formula (I) which largely have the R- or S-configuration at the carbon atom marked by * are reacted with metal alkoxides in dimethyl sulphoxide, optionally in the presence of appropriate alcohols, at temperatures between 0 DEG C. and 200 DEG C.
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申请公布号 |
US5183939(A) |
申请公布日期 |
1993.02.02 |
申请号 |
US19910796109 |
申请日期 |
1991.11.21 |
申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
JANSEN, JOHANNES R.;LITTMANN, MARTIN |
分类号 |
C07B55/00;C07C209/66;C07C209/68;C07C209/82;C07C209/88;C07C211/27;C07C211/29;C07C211/30;C07C217/58 |
主分类号 |
C07B55/00 |
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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