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Torán, Ricardo; Vila Descals, Carlos; Sanz Marco, Amparo; Muñoz, M. Carmen; Pedro, José Ramón; Blay Llinares, Gonzalo | |||
Aquest document és un/a article, creat/da en: 2020 | |||
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A thiourea-Brønsted base bifunctional catalyst allowed the enantioselective 1,6-aza-Michael addition of isoxazolin-5-ones to p-quinone methides to give isoxazolin-5-ones having a chiral diarylmethyl moiety attached to the N atom with fair to good yields and enantiomeric excesses. To the best of our knowledge this reaction represents the first example of enantioselective N-alkylation of isoxazolin-5-ones as well as the first example of enantioselective 1,6-aza-Michael reaction involving p-quinone methides. | |||
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