| 发明名称 |
PROCESS FOR THE PREPARATION OF ACETONE DICARBOXYLIC ACID AND DERIVATIVES THEREOF AND OF CITRIC ACID |
| 摘要 |
<p>A feasible process for the production of 3-oxoglutaric acid is disclosed wherein ketene and phosgene are reacted in a molar ratio of ketene to phosgene of less than 2 in an organic solvent possessing a dielectric constant at 20 DEG C between 2 and 22 and reacting the resulting product with a Zerewitinoff active hydrogen compound.</p> |
| 申请公布号 |
CA1031365(A) |
申请公布日期 |
1978.05.16 |
| 申请号 |
CA19740193579 |
申请日期 |
1974.02.27 |
| 申请人 |
AKZONA INCORPORATED |
发明人 |
HEYBOER, NICO |
| 分类号 |
C07C69/716;C07C51/00;C07C51/08;C07C59/185;C07C59/245;C07C59/265;C07C59/347;C07C67/00;C07C327/22 |
主分类号 |
C07C69/716 |
| 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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