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Application filed by Institutul De Cercetari Chimico-FarmaceuticefiledCriticalInstitutul De Cercetari Chimico-Farmaceutice
Priority to RO123968ApriorityCriticalpatent/RO94825B1/en
Publication of RO94825B1publicationCriticalpatent/RO94825B1/en
Inventia se refera la un procedeu de preparare a acidului pirazin monocarboxilic prin încalzirea complecsilor metalici ai acidului pirazin 2,3-dicarboxilic cu Mn sau Zn, în H indice 2 SO indice 4, la temperatura de 90...95 degree C.The invention relates to a process for the preparation of pyrazine monocarboxylic acid by heating the metal complexes of pyrazine 2,3-dicarboxylic acid with Mn or Zn in H index 2 SO4 index 4 at 90 DEG to 95 DEG C.
RO123968A1986-07-021986-07-02Process for preparing pyrazine monocarboxylic acid
RO94825B1
(en)