| 发明名称 |
PROCESS FOR PRODUCING 3,4-DIHYDROXY-3-CYCLOBUTENE-1,2-DIONE |
| 摘要 |
A process for producing 3,4-dihydroxy-3- cyclobutene-1,2-dione (common name: squaric acid) represented by general formula (III) from a vinyl ether represented by general formula (V) and a halogenoacetyl halide represented by general formula (VI), which comprises the reaction steps (1) to (4), wherein R 1 represents alkyl; and R 2, R 3 R 4, and X represent the same or different halogen atoms.
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| 申请公布号 |
KR20050106127(A) |
申请公布日期 |
2005.11.08 |
| 申请号 |
KR20057019590 |
申请日期 |
2005.10.14 |
| 申请人 |
KYOWA HAKKO CHEMICAL CO., LTD. |
发明人 |
MATSUSHITA SHOSHIRO;SHIMIZU IKUO;TOYODA HIROSHI;TANAKA ASAKO |
| 分类号 |
C07C45/00;C07C45/43;C07C45/63;C07C45/65;C07C49/707;(IPC1-7):C07C45/63;C07C45/70 |
主分类号 |
C07C45/00 |
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