| 发明名称 |
METHOD OF PREPARING TETRAHYDROPYRAN-4-CARBOXYLIC ACID AND ITS ESTERS |
| 摘要 |
The invention concerns a method of preparing tetrahydropyran-4-carboxylic acid and its esters of formula (I), in which R = H, C1-C8 alkyl, C3-C8 cycloalkyl, aryl or C7-C12 alkylphenyl, by reacting 2,7-dioxaspiro[4,4]nonan-1,6-dione (II) with water or alcohols of formula (III) R-OH in the presence of acid catalysts at 150 to 350 DEG C and 0.01 to 100 bar. |
| 申请公布号 |
WO9415931(A1) |
申请公布日期 |
1994.07.21 |
| 申请号 |
WO1993EP03670 |
申请日期 |
1993.12.23 |
| 申请人 |
BASF AKTIENGESELLSCHAFT;FISCHER, ROLF;SCHNURR, WERNER;GOETZ, NORBERT;KUEKENHOEHNER, THOMAS |
发明人 |
FISCHER, ROLF;SCHNURR, WERNER;GOETZ, NORBERT;KUEKENHOEHNER, THOMAS |
| 分类号 |
B01J21/04;B01J21/06;B01J23/08;B01J23/14;B01J23/16;C07D309/08;C07D493/10;(IPC1-7):C07D309/08 |
主分类号 |
B01J21/04 |
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