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Synthesis 1992; 1992(12): 1242-1244
DOI: 10.1055/s-1992-26349
DOI: 10.1055/s-1992-26349
short paper
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data processing and storage.Diastereo- and Enantioselective Synthesis of 4-Nitrocyclohexanones by [4+2] Cycloaddition of a Chiral 2-Aminobutadiene to Nitroalkenes
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Publikationsdatum:
29. April 2002 (online)

The Diels-Alder reaction of 3-[(S)-2-(methoxymethyl)pyrrolidin-1-yl]-1,3-butadiene [(S)-3] with 2-aryl-1-nitroethenes afforded, after hydrolysis, the 5-aryl-2-methyl substituted 4-nitrocyclohexanones (R,S,R)-5 in excellent enantiomeric purities (ee = 95-99 %) and with high diastereoselectivities (ds = 75-95 %).