33 research outputs found
Preparation of C2-Symmetric Biaryl Bisiminium Salts and Their Use as Organocatalysts for Asymmetric Epoxidation
Get PDFTwo C2-symmetric bisiminium salt species containing biphenylazepinium units and derived from two chiral diamines were prepared and tested as organocatalysts for asymmetric epoxidation
A Rapid and Highly Diastereoselective Synthesis of Enantiomerically Pure (4R,5R)- and (4S,5S)- iso-cytoxazone
Get PDFA three-step protocol for the highly diastereoselective (>98%) synthesis of both (4R,5R)- and (4S,5S)-isocytoxazone from d- or l-tyrosine is reported. The diastereoselection was confirmed by X-ray crystallography. This synthesis is currently the highest yielding approach towards these enantiomerically pure biologically active oxazolidinones
In situ generation of o-Iodoxybenzoic acid (IBX) in the presence of tetraphenylphosphonium monoperoxysulfate (TPPP) for the conversion of primary alcohols into the corresponding aldehydes
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