申请人:Cauwenberge Gunther Van
公开号:US20100204438A1
公开(公告)日:2010-08-12
The present invention relates to a process for preparing triethylenediamine (TEDA) derivatives, comprising the following steps:
a) reacting a dihydropyrazine with an olefin,
b) if appropriate hydrogenating after step a).
The present invention further also relates to novel TEDA derivatives as such and to their use as incorporable polyurethane catalysts.