VERFAHREN ZUR HERSTELLUNG VON KREATIN, KREATIN-MONOHYDRAT ODER GUANIDINOESSIGSÄURE
    2.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON KREATIN, KREATIN-MONOHYDRAT ODER GUANIDINOESSIGSÄURE 有权
    于制备肌酸,肌酸或胍基

    公开(公告)号:EP2001837A1

    公开(公告)日:2008-12-17

    申请号:EP07724062.0

    申请日:2007-04-05

    摘要: A process is proposed for preparing creatine, creatine monohydrate or guanidinoacetic acid, wherein N-methylethanolamine or ethanolamine is first catalytically dehydrogenated, in each case in alkaline solution, and the sarcosinate or glycinate solutions thus obtained are finally reacted under acidic conditions with a guanylating agent, for example O-alkylisourea or cyanamide. In this way, products are obtained in high yields and very good purity, but, in contrast to the prior art, no traces whatsoever of hydrocyanic acid, formaldehyde, chloroacetic acid or ammonia are present. The formation of the toxicologically unsafe dihydrotriazine is also avoided.