发明名称 |
PREPARATION OF 6-CARBOXY-3,4-DIHYDRO-2H-PYRAN |
摘要 |
6-Carboxy-3,4-dihydro-2H-pyran and ring-substituted derivatives thereof are prepared by reacting a 1,4-disubstituted butane having leaving groups at the one and four positions in a liquid solvent medium with carbon monoxide at elevated temperature and pressure in the presence of a catalytic amount of a metal carbonyl compound and an alkali metal inorganic base or an alkaline earth metal inorganic base. |
申请公布号 |
WO8501731(A1) |
申请公布日期 |
1985.04.25 |
申请号 |
WO1983US01799 |
申请日期 |
1983.11.15 |
申请人 |
ETHYL CORPORATION |
发明人 |
WOLFRAM, JOACHIM, WILHELM |
分类号 |
C07D309/00;B01J31/00;C07D309/28;(IPC1-7):C07D309/28 |
主分类号 |
C07D309/00 |
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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