CRYSTALS OF ALANINE N-ACETIC ACID PRECURSORS, PROCESS TO PREPARE THEM AND THEIR USE

CRYSTALS OF ALANINE N-ACETIC ACID PRECURSORS, PROCESS TO PREPARE THEM AND THEIR USE

The present invention relates to alanine N-acetic acid precursors of formula (i) COOM-CH(CH3)-NH-(CH2CN), wherein M is hydrogen (alanine N-monoacetonitrile), or (ii) COOM-CH(CH3)-N-(CH2CN)2, wherein 0 to 50% of all M is sodium or potassium and 50 to 100% of all M is hydrogen (alanine N,N-diacetonitr...

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Bibliographische Detailangaben
Hauptverfasser: JONGEN, HUBERTUS JOHANNES, SCHOMAKER, ELWIN, BOUWMAN, ALBERTUS JACOBUS MARIA, DOPPEN, ROY GÉRARD, HEUS, MARTIN
Format: Patent
Sprache:eng ; pol
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:The present invention relates to alanine N-acetic acid precursors of formula (i) COOM-CH(CH3)-NH-(CH2CN), wherein M is hydrogen (alanine N-monoacetonitrile), or (ii) COOM-CH(CH3)-N-(CH2CN)2, wherein 0 to 50% of all M is sodium or potassium and 50 to 100% of all M is hydrogen (alanine N,N-diacetonitrile and its partial sodium or potassium salts) comprising L-alanine to D-alanine in a range of from 75:25 to 50:50 (L:D), or (iii) COOM-CH(CH3)-N-(CH2CONH2)2, wherein M is hydrogen (alanine N,N-diacetamide), in the form of crystals, and relates to a process to prepare these precursors and their use, especially to give MGMA or MGDA.