| 发明名称 |
Preparation of styryl dyes |
| 摘要 |
Process for preparing compounds of the formula (I) where R1, R2 and R3 are independently hydrogen, alkyl or cycloalkyl, characterized in that an aldehyde of the formula (II) is reacted with CH2(CN)2 in the presence of butanol.
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| 申请公布号 |
US2003061670(A1) |
申请公布日期 |
2003.04.03 |
| 申请号 |
US20020223547 |
申请日期 |
2002.08.19 |
| 申请人 |
STAWITZ JOSEF-WALTER;MICHAELIS STEPHAN;THIEBES CHRISTOPH |
发明人 |
STAWITZ JOSEF-WALTER;MICHAELIS STEPHAN;THIEBES CHRISTOPH |
| 分类号 |
C07C253/30;C07C255/42;C08K5/315;C09B23/00;C09B23/14;D06P1/00;D06P3/52;(IPC1-7):C09B1/00 |
主分类号 |
C07C253/30 |
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