Nucleophile(s) almost exclusively added from the equatorial side of 2-nitro-β--2-enopyranoside and the axial side of 2-nitro---1-enitol. On the other hand, methoxide and -butyl peroxide ions approached from the equatorial side of 2-nitro-α--2-enopyranoside, whereas methanol and hydrogen peroxide ion from the axial side.
亲核试剂(S)几乎完全从2-硝基β-的赤道侧添加-2-烯
吡喃糖苷和2-硝基的轴向侧- -1- enitol。另一方面,
甲醇和
过氧化氢离子从2-硝基-α--2-烯
吡喃糖苷的赤道侧接近,而
甲醇和
过氧化氢离子从轴向侧接近。