发明名称 |
Pyrone derivatives and method for producing same |
摘要 |
Disclosed is a novel method for producing pyrone derivatives of general formula (I), wherein X1 means halogen-methyl, whereby an acetoacetic acid derivative of general formula (II), wherein X1 has the aforementioned meaning and X2 means chlorine or bromine, is treated with Lewis acid and is subsequently converted into the desired product by means of water.
|
申请公布号 |
US2003013896(A1) |
申请公布日期 |
2003.01.16 |
申请号 |
US20020148190 |
申请日期 |
2002.08.12 |
申请人 |
BRIEDEN WALTER;GOTTSPONER MICHAEL |
发明人 |
BRIEDEN WALTER;GOTTSPONER MICHAEL |
分类号 |
C07C45/46;C07C49/80;C07D309/38;(IPC1-7):C0739/22 |
主分类号 |
C07C45/46 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|