摘要:
Lewis acid-promoted conjugate addition reaction of an allylsilane to a series of the chiral 8-arylmenthol-derived N-acyl-2,3-dihydro-4-pyridones leads to the 2-allyl-4-piperidones with moderate to high levels of asymmetric induction, indicating restacking contribution to chirality control. This methodology was applied to the asymmetric synthesis of (-)-N-methylconiine. Copyright (C) 1996 Elsevier Science Ltd