Selectivity in Organic Group Transfer in Reactions of Mixed Diorganomanganese(II) and Triorganomanganate(II) with 2-Cyclohexen-1-one or Cyclohexanecarbaldehyde
作者:Hideki Yorimitsu、Yasuhiro Hayashi、Jun Tang、Hiroshi Shinokubo、Koichiro Oshima
DOI:10.1246/bcsj.70.2297
日期:1997.9
The unsymmetrical diorganomanganeses(II) (R1R2Mn) and magnesium triorganomanganates(II) (R12R2MnMgX) reacted with 2-cyclohexen-1-one to produce the 1,4-addition products in moderate to good yields. The approximate reactivity order obtained from the product distribution was CH2=CHCH2 > PhS > n-Bu > Ph > Me, Me3SiCH2, n-C6H13–C≡C. In contrast, the reactivity order for the addition of these reagents to
不对称二有机锰 (II) (R1R2Mn) 和三有机锰酸镁 (II) (R12R2MnMgX) 与 2-环己烯-1-one 反应生成 1,4-加成产物,收率适中。从产物分布获得的近似反应性顺序为 CH2=CHCH2 > PhS > n-Bu > Ph > Me、Me3SiCH2、n-C6H13–C≡C。相比之下,将这些试剂添加到环己烷甲醛的反应顺序是 CH2=CHCH2 > Ph > Me > n-Bu > n-C6H13C≡C > Me3SiCH2。