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Abstract
In this work we have studied and discussed the factors related to the preparation of the acids D, L-α-alanin -N,N -bis (carboximetil), 2-metil-α-alanin-N,N-bis (carboximetil) and β-alanin-N,N-bis(carboximetil) through condensation of chloroacetate with the corresponding alanine in alkaline medium. Similar yields as published earlier, are discussed and explained on the basis of difficulties in the condensation process and observed differencies in the solubility of these products. By first time, the isolation of their hydrochlorides is provided and several data for the characterization of the acids are included.
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