公开(公告)号：US06242651B1

公开(公告)日：2001-06-05

申请号：US09673749

申请日：2000-10-20

申请人： Yasuhiro Takano ,  Kaoru Sakadera ,  Jyoji Morisaki ,  Kunihiro Yamada ,  Hideki Mizuta ,  Hisato Itoh

发明人： Yasuhiro Takano ,  Kaoru Sakadera ,  Jyoji Morisaki ,  Kunihiro Yamada ,  Hideki Mizuta ,  Hisato Itoh

IPC分类号： C07C20908

CPC分类号： C07C209/08 ,  C07C211/09 ,  C07C211/10

摘要： A preparation process of N,N′-dialkylalkanediamine by reacting dihaloalkane with lower alkylamine characterized by carrying out the reaction with controlling the residual amount in the reaction system of haloalkaneamine intermediate represented by the formula (4): wherein R is a lower alkyl group, R1 and R2 are a hydrogen atom or a lower alkyl group, X is a chlorine, bromine or iodine atom, and n is an integer of 2 to 6, and the invention inhibits formation of by-products cyclic dialkyldiamine and trialkylalkanetriamine and can provide desired N,N′-dialkylalkanediamine with a high yield.

摘要翻译： 通过二卤代烷与低级烷基胺的反应制备N，N'-二烷基链烷二胺的制备方法，其特征在于进行反应，控制由式（4）表示的卤代烷烃中间体的反应体系中的残留量：其中R是低级烷基， R1和R2是氢原子或低级烷基，X是氯，溴或碘原子，n是2-6的整数，并且本发明抑制副产物环状二烷基二胺和三烷基烷三胺的形成，并且可以提供所需的 N，N'-二烷基链烷二胺，产率高。