62023-63-6Relevant articles and documents
N -Boc amines to oxazolidinones via Pd(II)/bis-sulfoxide/br?nsted acid Co-catalyzed allylic C-H oxidation
Osberger, Thomas J.,White, M. Christina
, p. 11176 - 11181 (2014/08/18)
A Pd(II)/bis-sulfoxide/Br?nsted acid catalyzed allylic C-H oxidation reaction for the synthesis of oxazolidinones from simple N-Boc amines is reported. A range of oxazolidinones are furnished in good yields (avg 63%) and excellent diastereoselectivities (avg 15:1) to furnish products regioisomeric from those previously obtained using allylic C-H amination reactions. Mechanistic studies suggest the role of the phosphoric acid is to furnish a Pd(II)bis-sulfoxide phosphate catalyst that promotes allylic C-H cleavage and π-allylPd functionalization with a weak, aprotic oxygen nucleophile and to assist in catalyst regeneration.
PROCESSES FOR PRODUCING OXAZOLIDINONE DERIVATIVE OF BETA-HYDROXYETHYLAMINE COMPOUND AND FOR PRODUCING BETA-HYDROXYETHYLAMINE COMPOUND
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Page 15-16, (2008/06/13)
The present invention provides a process of starting from N-alkoxycarbonyl-ethylamine compounds having a leaving group at the β-position to prepare oxazolidinone derivatives of β-hydroxyethylamine compounds having an inverted steric configuration at the β
Stereoselective cyanation of chiral α-amino aldehydes by reaction with Nagata's reagent: A route to enantiopure β-amino-α-hydroxy acids
Andres, Jose M.,Martinez, Maria A.,Pedrosa, Rafael,Perez-Encabo, Alfonso
, p. 347 - 353 (2007/10/03)
Chiral α-dibenzylamino aldehydes react with diethylaluminum cyanide leading to anti-β-dibenzylamino-α-hydroxycyanides as the major diastereoisomers in good yields and diastereomeric excesses. Hydrolysis of the nitrile derivatives allows the synthesis of enantiopure β-amino-α-hydroxy acids.