Racemic naturally-occurring amino acids in the form of derivatives of the amino group and optionally of any hydroxyl or mercapto group present are resolved by reacting them in an aqueous medium with an optically-active metal complex which is capable of supplying a univalent, bivalent or trivalent...
Enzymatic Resolution of Racemic Amino Acidsdoi:10.1271/bbb1924.21.235MICHI, KimiyoTSUDA, HarumiBulletin of the Agricultural Chemical Society of Japan
This chapter focuses on the resolution of racemic α-amino acids. When same proteins are hydrolyzed by an alkaline agent, such as strong baryta, amino acids are optically inactive and posses different solubilities from those of the corresponding active forms. These values are obtained with amino ...
2-amino-3-gidroksiyantarnoy acid and 2,3-diaminoyantarnoy acid and 0.1 to 9 wt % corresponding α-hydroxy acids, the composition comprising such a mixture, and their use for the preparation of complexing agents.;EFFECT: proposed method allows to receive target αamino acids with high yield...
M. M et al.Deconjugation of Dehydroamino Acids:Stereoselective Synthesis of Racemic (E)-Vinylglycines. Organic Letters . 2005Alexander P. A,Marsden S. P,Subtil, D. M. M et al.Deconjugation of Dehydroamino Acids:Stereoselective Synthesis of Racemic (E)-Vinylglycines.Organic Letters. 2005...
Aliphatic Amino Acids Analogs of Alanine, Glycine, Valine, and Leucine Analogs of Arginine and Lysine Analogs of Aspartic and Glutamic Acids Analogs of Benzoic Acid Analogs of Cysteine and Methionine Analogs of Phenylalanine and Tyrosine Analogs of Proline Analogs of Serine, Threonine, and Statine ...
Amino-Acid Racemization 氨基酸的外消旋 jw2019 Other scientific dating methods, of which amino-acid racemizationwas foremost in the attack on the Bible’s history of man’s creation, have failed evolutionists miserably. 其他科学鉴定方法——对圣经中人类受造的历史攻击最烈的是氨基酸外消旋鉴定法——均...
On the Origin of Single Chirality of Amino Acids and Sugars in Biogenesis The process of delineating the origins of the chemistry of life starts with the consideration of the molecules that might have existed on prebiotic earth a... JE Hein,DG Blackmond - 《Acc Chem Res》 被引量: 65发表:...
Recent research progresses of method of preparation in chiral compound'sracemateof amino acids were reviewed in this paper, the possible development future of it was predicted. 综述了近年来含氨基酸的手性化合物外消旋体的制取方法,并展望了其研究发展的前景。
Treatment of the readily available (R)-(-)enantiomer of 2-aminobutan-1-ol 1 with sodium hydride followed by benzyl chloride afforded the O-benzyl base (R)-(-)-2. The latter was successfully used for the resolution of racemic α-methylsuccinic and α-bromosuccinic acids, as well...