- Process for the preparation of amino acid esters and their acid addition salts
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Preparation of amino acids, peptide esters and/or their acid addition salts of monomers or polymers amino acids, peptides, proteins or alcohols (I), where the reaction is carried out in supercritical alcohols.
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Page/Page column 5; 6
(2008/06/13)
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- Process for preparing amino acid esters and their acid addition salts
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The invention provides a process for preparing amino acid esters and/or their acid addition salts from monomeric or polymeric amino acids, peptides, proteins and alcohols, which comprises carrying out the reaction in supercritical alcohols, preferably at pressures and temperatures which are at least 5% above the critical parameters, the alcohols serving both as the solvent and as reactants.
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Page/Page column 3-4
(2008/06/13)
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- Process for producing caprolactam
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A process for preparing caprolactam by reacting 6-aminocapronitrile with water in the presence of catalysts comprises using a starting mixture of 6-aminocapronitrile and the tetrahydroazepine derivative of the formula and conducting the reaction in liquid phase in the presence of a heterogeneous catalyst. Also describes a process for preparing said tetrahydroazepine derivative I and its use for preparing caprolactam and polycaprolactam.
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Page column 5
(2008/06/13)
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