- 3 regioselectively at ambient temperature to give chiral hydroxylamines m 60 - 80% yield. In addition to these products of a formal ene reaction joined by a subsequent hydrolysis 2-substituted hydroxylamines 40 - 49 are also formed. The 2-substituted hydroxylamines 40, 41, 49 possess trans configurations exclusively. The product distribution is solvent dependent and susceptible to the addition of