| 发明名称 |
METHOD FOR PRESSURELESS PRODUCTION OF alpha , alpha -DIMETHYLPHENYL ACETIC ACID FROM alpha , alpha -DIMETHYL BENZYL CYANIDE |
| 摘要 |
The invention relates to a method for obtaining alpha , alpha -dimethylphenyl acetic acid, wherein alpha , alpha -dimethly benzyl cyanide is reacted in the presence of sodium hydroxide, water, a C4- and/or a C5-alcohol at temperatures above 100 DEG C and alpha , alpha -dimethylphenyl acetic acid is obtained by acidification. |
| 申请公布号 |
WO0018715(A1) |
申请公布日期 |
2000.04.06 |
| 申请号 |
WO1999EP06829 |
申请日期 |
1999.09.15 |
| 申请人 |
AVENTIS PHARMA DEUTSCHLAND GMBH |
发明人 |
KORB, GERHARD;FLEMMING, HANS-WOLFRAM;LEHNERT, RUDOLF;RYBCZYNSKI, WOLFGANG |
| 分类号 |
C07C51/08;C07C57/30 |
主分类号 |
C07C51/08 |
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