申请人:Taminco bvba
公开号:EP3290401A1
公开(公告)日:2018-03-07
Two alternative methods for producing at least one N-substituted acyclic ethylene diamine are provided:
Method A according to the invention comprises:
- reacting at least one reducing sugar, hydrogen and at least one primary amine NH2R or at least one secondary amine NHR'R" or a mixture of at least one primary amine NH2R and at least one secondary amine NHR'R"
- in the presence of a supported hydrogenation catalyst
- at a reaction temperature of 50°C to 200 °C, and
- at a reaction pressure being superatmospheric pressure, and wherein
- the molar ratio of the at least one primary amine and/or secondary amine : reducing sugar is at least 4:1.
Method B according to the invention comprises the steps:
1. reacting at least one reducing sugar and at least one primary amine NH2R or at least one secondary amine NH2R'R" or a mixture of at least one primary amine NH2R and at least one secondary amine NHR'R" in a first step, and
2. reacting the reaction mixture obtained in step 1) with hydrogen in the presence of a supported hydrogenation catalyst in a second step.
本发明提供了生产至少一种 N-取代无环乙二胺的两种替代方法:
根据本发明的方法 A 包括
- 使至少一种还原糖、氢和至少一种伯胺 NH2R 或至少一种仲胺 NHR'R" 或至少一种伯胺 NH2R 和至少一种仲胺 NHR'R" 的混合物反应
- 在支撑氢化催化剂存在下
- 反应温度为 50°C 至 200°C,以及
- 反应压力为超大气压,其中
- 至少一种伯胺和/或仲胺与还原糖的摩尔比至少为 4:1。
根据本发明的方法 B 包括以下步骤
在第一步中使至少一种还原糖和至少一种伯胺 NH2R 或至少一种仲胺 NH2R'R" 或至少一种伯胺 NH2R 和至少一种仲胺 NHR'R" 的混合物反应,以及
2. 在第二步中,将步骤 1) 中得到的反应混合物在有支撑氢化催化剂存在的情况下与氢气反应。