发明名称 |
Process for the purification of cyclopropanecarboxaldehyde |
摘要 |
Disclosed is process for the treatment of cyclopropanecarboxaldehdye (CPCA) which contains crotonaldehyde impurity with a base at elevated temperature to convert the crotonaldehyde to one or more higher boiling compounds followed by distillation to recover CPCA substantially free of crotonaldehyde. This selective reaction may be combined with a distillation to purify CPCA or in combination with the reaction of the CPCA in the treated mixture to produce a CPCA-derivative while avoiding or minimizing the formation of the analogous crotonaldehyde derivative.
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申请公布号 |
US6353140(B1) |
申请公布日期 |
2002.03.05 |
申请号 |
US20010877860 |
申请日期 |
2001.06.08 |
申请人 |
EASTMAN CHEMICAL COMPANY |
发明人 |
FALLING STEPHEN NEAL;LARGE SHANNON EUGENE;MALESKI ROBERT JOSEPH |
分类号 |
C07C45/82;C07C45/85;C07C51/42;(IPC1-7):C07C47/00 |
主分类号 |
C07C45/82 |
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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