10303-64-7Relevant articles and documents
pH-Dependent Chemoselective Synthesis of α-Amino Acids. Reductive Amination of α-Keto Acids with Ammonia Catalyzed by Acid-Stable Iridium Hydride Complexes in Water
Ogo, Seiji,Uehara, Keiji,Abura, Tsutomu,Fukuzumi, Shunichi
, p. 3020 - 3021 (2004)
An acid-stable hydride complex [Cp*IrIII(bpy)H]+ {1, Cp* = η5-C5Me5, bpy = 2,2′-bipyridine} serves as the active catalyst for the highly chemoselective synthesis of α-amino acids by reductive aminatio
Biocatalytic racemization of α-hydroxycarboxylic acids using a stereo-complementary pair of α-hydroxycarboxylic acid dehydrogenases
Bodlenner, Anne,Glueck, Silvia M.,Nestl, Bettina M.,Gruber, Christian C.,Baudendistel, Nina,Hauer, Bernhard,Kroutil, Wolfgang,Faber, Kurt
, p. 7752 - 7755 (2009)
Biocatalytic racemization of aliphatic, (aryl)aliphatic and aromatic α-hydroxycarboxylic acids was achieved via a reversible oxidation-reduction sequence using a pair of stereo-complementary Prelog- and anti-Prelog d- and l-α-hydroxyisocaproate dehydrogenases from Lactobacillus confusus DSM 20196 and Lactobacillus paracasei DSM 20008, resp., overexpressed in Escherichia coli. The mild reaction conditions ensured essential 'clean' isomerization, undesired 'over-oxidation' of the substrate forming the α-ketoacid could be suppressed by exclusion of O2 and adjustment of the NAD+/NADH-ratio.
A 2 - hydroxy dissidents calcium synthetic method
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Paragraph 0020; 0023-0024; 0030; 0033-0034; 0039; 0042-0043, (2019/07/05)
The invention discloses a 2 - hydroxy dissidents calcium synthetic method: to different pentanals, sodium bisulfite, sodium cyanide as raw material through nucleophilic addition reaction in the synthesis of 2 - hydroxy different fifth heavenly stem nitrile, then in acidic conditions by the hydrolysis reaction of the 2 - hydroxy dissidents acid, the final calcium salt exchange reaction 2 - hydroxy dissidents calcium, then refined to get the pure product 2 - hydroxy dissidents acid calcium, refined pure product purity as high as 99.7%, three-step [...] yield is up to 80% or more. The method has the production cycle is short, simple and convenient operation, is suitable for industrial production.
Process for producing a polyester
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, (2008/06/13)
A process for producing a polyester, the process comprising the steps of (1) fermenting a saccharide with a microorganism to obtain at least one substituted α-hydroxy acid represented by the formula: HO—CHR—COOH (wherein R represents a hydrocarbon group having 1 to 10 carbon atoms), and (2) polymerizing the substituted α-hydroxy acid or a derivative thereof.
