Corresponding free amino acids

Graphite oxide as a heterogeneous and recyclable solid acid catalyzed a simple and efficient method for the synthesis of β-amino alcohols by ring opening of epoxides with amines. This method is effective with various aromatic and aliphatic amines under solvent-free conditions. The corresponding β-amino alcohols are obtained in high yields (56%–95%) and short reaction times (15–30 min) with high regio- and chemoselectivity under metal-free conditions.

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Seafood is the most significant perishable commodity. Decomposition of seafood, especially during storage at elevated temperatures (48˚C), various amounts of selected biogenic amines is usually produced, depending on the fish species. Most common biogenic amines in seafood associated with spoilage are histamine, tyramine, putrescine and cadaverine which are formed by bacteria that decarboxylases the corresponding free amino acids. Histamine is known as a biogenic amine which is low molecular weight and possesses biological activity.

12p kequaidan2 13-12-2019 29 1   Download