Quaternary β2,2-amino acid derivatives by asymmetric addition of isoxazolidin-5-ones to para-quinone methides
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Novel densely functionalized β2,2-amino acids were obtained in almost enantiopure form using down to 20 ppm of a chiral phase-transfer catalyst.
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1999 ◽
Vol 121
(27)
◽
pp. 6519-6520
◽
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