Process for the preparation of N,N,N',N'-tetrakis(3-aminopropyl)-1,4-butanediamine
申请人:Astellas Pharma Inc.
公开号:EP2557074A1
公开(公告)日:2013-02-13
The invention provides a process for the preparation of N,N,N',N'-tetrakis(3-aminopropyl)-1,4-butanediamine by hydrogenation of 3,3',3",3"'-(1,4-butanediyldinitrilo)tetrakispropanenitrile, wherein 3,3',3",3"'-(1,4-butanediyldinitrilo)tetrakispropanenitrile is continuously added to a suspension or solution of a catalyst in a solvent which optionally comprises one or more additives and is stirred at a temperature in the range from 40 to 150 °C under a hydrogen pressure, characterized in that (i) the solvent is tetrahydrofuran, (ii) the catalyst is a hydrogenation catalyst selected from the group consisting of (1) Sponge Metal™ Cobalt, A-8B46, promoted with Nickel and Chromium, (2) Raney™ Cobalt, 2724, promoted with Chromium, (3) Actimet™ Cobalt and (4) Activated Ni catalyst, B 113 W, and (iii) the hydrogen pressure is from 30 to 50 bar. This special combination of catalyst and solvent allows the preparation of N,N,N',N'-tetrakis(3-aminopropyl)-1,4-butanediamine in high purity under a moderate hydrogen pressure which is suitable for large scale synthesis.
本发明提供了一种制备N,N,N',N'-四(3-氨基丙基)-1,4-丁二胺的方法,该方法通过对3,3',3'',3'''-(1,4-丁二基二腈基)四(丙烷腈)进行加氢反应而得到。其中,3,3',3",3"'-(1,4-丁二基二腈基)四(丙烷腈)连续加入到催化剂在溶剂中的悬浮液或溶液中,该溶剂可以包含一种或多种添加剂,并在40至150℃的温度下在氢气压力下搅拌,其特征在于(i)溶剂为四氢呋喃,(ii)催化剂为选择自(1)海绵金属™钴,A-8B46,由镍和铬促进,(2)Raney™钴,2724,由铬促进,(3)Actimet™钴和(4)活性镍催化剂,B 113 W的氢化催化剂组成,(iii)氢气压力为30至50巴。这种特殊的催化剂和溶剂的组合可在适用于大规模合成的中等氢气压力下高纯度地制备N,N,N',N'-四(3-氨基丙基)-1,4-丁二胺。