发明公开
EP1713763A1 VERFAHREN ZUR HERSTELLUNG VON NITRILEN UND ISONITRILEN DURCH DEHYDRATISIERUNGSREAKTIONEN MIT PROPANPHOSPHONSÄUREANHYDRIDEN
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基本信息:
- 专利标题： VERFAHREN ZUR HERSTELLUNG VON NITRILEN UND ISONITRILEN DURCH DEHYDRATISIERUNGSREAKTIONEN MIT PROPANPHOSPHONSÄUREANHYDRIDEN
- 专利标题（英）：Method for producing nitriles and isonitriles by using dehydration reactors with propanephosphonic acid anhydrides
- 专利标题（中）：用于生产和腈异腈涉及脱水与PROPANPHOSPHONSAEUREANHYDRIDEN
- 申请号：EP05700951.6 申请日：2005-01-15
- 公开(公告)号：EP1713763A1 公开(公告)日：2006-10-25
- 发明人： MEUDT, Andreas , SCHERER, Stefan , NERDINGER, Sven
- 申请人： Archimica GmbH
- 申请人地址： Brüningstrasse 50 65929 Frankfurt am Main DE
- 专利权人： Archimica GmbH
- 当前专利权人： EUTICALS GMBH, DE
- 当前专利权人地址： EUTICALS GMBH, DE
- 代理机构： Schweitzer, Klaus
- 优先权： DE102004003953 20040126
- 国际公布： WO2005070879 20050804
- 主分类号： C07C253/20
- IPC分类号： C07C253/20 ; C07C253/22 ; C07C291/10 ; C07C255/50
摘要：
The invention concerns a method for producing: a) nitriles of formula (II) and; b) isonitriles of formula (III) by reacting: a) carboxylic acid amides (RCO-NH2), ammonium salts of carboxylic acids (RCOO-NH4+) or carboxylic acids in the presence of ammonia or ammonium salts (RCOOH +NH3, RCOOH + NH4+) or; b) formamides (H-CO-NHR) or mixtures of amines with formic acid, with cyclic phosphonic acid anhydrides while eliminating water at a temperature ranging from -30 to +120 °C, in which R represents an arbitrarily substituted linear or branched C1-C8 alkyl radical, a C3-C10 cycloalkyl radical, alkenyl radical, alkynyl radical or an aryl radical or heteroaryl radical. As a cyclic phosphonic acid anhydride, a 2,4,6,-substituted 1,3,5,2,4,6-trioxatriphosphinane-2,4,6-trioxide of formula (I) is used, in which: x = 3, 4 or 5; R', independent of one another, represents open-chain or branched, saturated or unsaturated, straight-chain C1 to C16 alkyl radicals or cyclic C3 to C16 alkyl radicals or aryl or heteroaryl.
公开/授权文献:
IPC结构图谱:
| C | 化学；冶金 |
| --C07 | 有机化学 |
| ----C07C | 无环或碳环化合物 |
| ------C07C253/00 | 羧酸腈的制备 |
| --------C07C253/20 | .由羧酸酰胺脱水 |