| 发明名称 |
Process for the preparation of onium salts having a low chloride content |
| 摘要 |
The invention relates to a process for the preparation of onium salts having a low chloride content by reaction of an onium chloride with an acid, where the hydrochloric acid forming is removed by azeotropic distillation by coordination to an organic solvent which forms an azeotropic mixture with water.
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| 申请公布号 |
US7692007(B2) |
申请公布日期 |
2010.04.06 |
| 申请号 |
US20050632313 |
申请日期 |
2005.06.17 |
| 申请人 |
MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG |
发明人 |
IGNATYEV NIKOLAI (MYKOLA);WELZ-BIERMANN URS;BARTHEN PETER;WILLNER HELGE |
| 分类号 |
C07D239/00;C07C209/84;C07D211/92;C07D213/06;C07D233/00;C07D233/54;C07F5/02;C07F9/02;C07F9/54 |
主分类号 |
C07D239/00 |
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