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    • 1. 发明授权
    • Process for the preparation of propargyl amines
    • 炔丙胺的制备方法
    • US4564706A
    • 1986-01-14
    • US514149
    • 1983-07-14
    • Zoltan EcseryEva SomfaiJudit Hermann nee VorosLajos NagyGabor SzaboOtto OrbanLaslzo Arvai
    • Zoltan EcseryEva SomfaiJudit Hermann nee VorosLajos NagyGabor SzaboOtto OrbanLaslzo Arvai
    • C07C67/00C07C209/00C07C209/08C07C211/63C07C87/28C07C85/04
    • C07C209/08
    • The invention relates to a new process for the preparation of propargyl ammonium chlorides of the Formula I ##STR1## by alkaline decomposition of the d-tartarate of the 1-isomer of an amine of the Formula II ##STR2## and subsequent reaction of the amine of the Formula II with a halide of the Formula IIIX--CH.sub.2 --C.tbd.CH (III)in the presence of an organic solvent, alkali and waterin which in Formulae II and III respectively,n is 1 or 0 andX stands for halogenwhich comprises reacting the d-tartarate of the 1-isomer of an amine of the Formula II in aqueous suspension with an alkali, dissolving the base of the Formula II, thus set free without isolation in a water non-miscible organic solvent and reacting the same in the said phase with a halide of the Formula III, and thereafter--preferably after separating the aqueous layer--reacting the mixture which contains the amines of the Formulae II and IV ##STR3## in the organic phase in the presence of water with an organic acid or a solution which has a pH value of 1.5-6 and consists of an inorganic acid and water, thus dissolving in the two-phase mixture formed the salt of the amine of the Formula II in the aqueous layer and selectively separating the amine of the Formula II from the amine of the Formula IV, and thereafter adding after the separation of the phases hydrogen chloride to the amine of the Formula IV being in the organic phase and thus precipitating the salt of the Formula I.The compounds of Formula I are known pharmaceutical active ingredients. The advantage of the process of the present invention that it is highly economical and enables the recovery of the starting materials on large scale production too.
    • 本发明涉及通过碱式分解通式II(XIIX)的胺的1-异构体的d-酒石酸来制备式I的炔丙基氯化铵的新方法(I) 和随后的式II的胺与式III的X-CH 2 -C 3 CH 3(III)的卤化物在有机溶剂,碱和水的存在下分别反应,其中式II和III分别为n为1 或0和X表示卤素,其包括使式II的胺的1-异构体在水悬浮液中与碱反应,溶解式II的碱,因此在不分离的情况下在水中非游离 在所述相中与其反应,与式III的卤化物反应,然后优选在将含有式II和IV的胺的混合物(IV)的水层分离成 在有机酸存在下的有机相 或pH值为1.5-6且由无机酸和水组成的溶液,因此溶解在两相混合物中形成水性层中式II的胺的盐,并选择性地分离 式II的式II化合物,然后在将相氯化氢分离为式IV的胺之后加入有机相,由此沉淀式I的盐。式I的化合物是已知的 药用活性成分。 本发明方法的优点是高度经济且能够在大规模生产中回收原料。