申请人:Idemitsu Kosan Company Limited
公开号:US05286905A1
公开(公告)日:1994-02-15
The present invention relates to a process for the production of a biguanide derivative useful as an intermediate for triazine-type herbicides, in which the biguanide derivative can be produced at high yields by reacting a phenoxyalkylamine salt with dicyandiamide in a solvent containing a paraffinic hydrocarbon having 8 to 15 carbon atoms, or by reacting a free phenoxylakylamine with a hydrogen halide in a solvent containing a paraffinic hydrocarbon having 8 to 15 carbon atoms and reacting the resultant a phenoxyalkylamine salt with dicyandiamide in the same solvent without isolating the phenoxyalkylamine salt.
本发明涉及一种用于生产对三嗪类除草剂中间体有用的双胍衍生物的方法,其中通过在含有8至15个碳原子的烷烃类碳氢化合物溶剂中,将苯氧基烷胺盐与二氰胺反应,可以高产率地生产双胍衍生物;或者通过在含有8至15个碳原子的烷烃类碳氢化合物溶剂中,将游离的苯氧基烷胺与氢卤酸反应,然后在同一溶剂中将所得的苯氧基烷胺盐与二氰胺反应,而无需分离苯氧基烷胺盐。