申请人:BASF SE
公开号:US20150353491A1
公开(公告)日:2015-12-10
The present invention relates to 2,6-bis(aminomethyl)piperidine derivatives as such (in the following text abbreviated to “2,6-BAMP derivatives”) which are defined by the general formula (I) shown in the following text. In addition, the present invention relates to a process for preparing such 2,6-BAMP derivatives by hydrogenation of the corresponding 2,6-dicyanopiperidine derivatives (hereinafter abbreviated to “2,6-DCP derivatives”) in the presence of a catalyst. The present invention further provides for the use of the 2,6-BAMP derivatives of the invention as hardeners for epoxy resins, as intermediate in the preparation of diisocyanates, which play an important role in the production of polyurethanes, as starters in the preparation of polyetherols and/or as monomers for polyamide production. The present invention further relates to the diisocyanates as such prepared from the 2,6-BAMP derivatives and also the corresponding preparative process.
本发明涉及2,6-双(氨甲基)哌啶衍生物(以下简称为“2,6-BAMP衍生物”),其由下文所示的通式(I)定义。此外,本发明涉及一种通过在催化剂存在下对相应的2,6-二氰基哌啶衍生物(以下简称为“2,6-DCP衍生物”)进行氢化制备此类2,6-BAMP衍生物的方法。本发明还提供了本发明的2,6-BAMP衍生物作为环氧树脂的固化剂、作为制备二异氰酸酯的中间体,在聚氨酯生产中扮演重要角色、作为制备聚醚醇的起始剂和/或作为聚酰胺生产的单体的用途。本发明还涉及从2,6-BAMP衍生物制备的二异氰酸酯及相应的制备过程。