发明名称 |
FREMGANGSMÅDE TIL FREMSTILLING AF 2,4-DIOXOTETRAHYDROFURAN-3-CARBOXYLATER |
摘要 |
<p>Process for preparing 2,4-dioxotetrahydrofuran-3-carboxylates of the formula (I) and/or (I′) comprising the reaction of a haloacetyl chloride compound of the formula (II) with a malonic ester of the formula (III) in which Hal, R1 and R2 have the definitions stated in the application, in the presence of a suitable base and optionally in the presence of a solvent; the addition of a sufficient amount of water to the reaction mixture; and the isolation of the desired 2,4-dioxotetrahydrofuran-3-carboxylate.</p> |
申请公布号 |
DK2464636(T3) |
申请公布日期 |
2015.08.31 |
申请号 |
DK20100742095T |
申请日期 |
2010.08.04 |
申请人 |
BAYER INTELLECTUAL PROPERTY GMBH |
发明人 |
LUI, NORBERT;HEINRICH, JENS-DIETMAR;FUNKE, CHRISTIAN |
分类号 |
C07D307/60 |
主分类号 |
C07D307/60 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|