| 发明名称 |
Process for producing mixture of dihydroxydiphenylsulfone isomers |
| 摘要 |
The present invention provides a process for producing a mixture of 4,4'- and 2,4'-dihydroxydiphenylsulfones comprising heating trihydroxytriphenyldisulfone or a mixture of dihydroxydiphenylsulfone isomers containing trihydroxytriphenyldisulfone in the presence of phenol and an acid catalyst.
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| 申请公布号 |
US2004242935(A1) |
申请公布日期 |
2004.12.02 |
| 申请号 |
US20040490754 |
申请日期 |
2004.03.25 |
| 申请人 |
OI FUMIO;YANASE NORIO;YAMAMOTO HIROYUKI |
发明人 |
OI FUMIO;YANASE NORIO;YAMAMOTO HIROYUKI |
| 分类号 |
C07B61/00;C07C315/04;C07C317/22;(IPC1-7):C07C317/22 |
主分类号 |
C07B61/00 |
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