24211-54-9Relevant articles and documents
Concise Enantioselective Synthesis of Naturally Active (S)-3-Hydroxypiperidine
Dey, Soumen,Karabal, Pratibha U.,Sudalai, Arumugam
supporting information, p. 1559 - 1565 (2015/06/02)
A short and efficient enantioselective synthesis of natural product (S)-3-hydroxypiperidine has been achieved starting from commercially available raw materials employing two catalytic routes: (i) cocatalyzed hydrolytic kinetic resolution (HKR) of racemic methyl-3-(oxiran-2-yl)propanoate; (ii) proline-catalyzed α-aminooxylation followed by Horner-Wardsworth-Emmons olefination in high enantiomeric purity (97% ee) and high overall yield (38%). (Chemical Equation Presented).
Asymmetrie copper(l)-catalyzed Henry reaction with an aminoindanol-derived bisoxazolidine ligand
Spangler, Kimberly Yearick,Wolf, Christian
supporting information; experimental part, p. 4724 - 4727 (2009/12/08)
Bisoxazolidine 1 Is an effective ligand In the Me2Zn-promoted and the Cu(l)-catalyzed Henry reaction. While a wide range of nitroaldol products are obtained In high yields and ee's In both cases, the replacement of dimethylzinc with copper(l) acetate results In a complete reversal of the sense of asymmetric Induction. The Cu(l)-catalyzed enantioselective addition of nitromethane to methyl 4-oxobutanoate followed by hydrogenation and spontaneous lactamlzatlon gives (S)-5-hydroxyplperldln-2-one In 72% overall yield and 98% ee which compares favorably with previously reported methods.
Synthesis of carbohydrate-based monomers that are precursors for the preparation of stereoregular polyamides
Zamora, Francisca,Bueno, Manuel,Molina, Inmaculada,Orgueira, Hernan A.,Varela, Oscar,Galbis, Juan A.
, p. 1811 - 1818 (2007/10/03)
The syntheses of some derivatives of 5-amino-5-deoxy-L-arabinonic acid, 5- amino-5-deoxy-D-xylonic acid and (S)-5-amino-4-hydroxypentanoic acid have been performed in several steps from L-arabinose, D-xylose and (S)-(+)- glutamic acid, respectively. These ω-aminoacids are precursors of bifunctional monomers that could be used for the preparation of optically active polyamides.