Chin. J. Org. Chem. ›› 1999, Vol. 19 ›› Issue (1): 53-58. Previous Articles     Next Articles

Original Articles

羰基化合物及其与卤代烃在CeCl~3/萘锂试剂作用下的反应

杨锦飞;包建春;肖亚平;贝浼智   

  1. 南京师范大学化学系.南京(210024)
  • 发布日期:1999-02-25

Reaction of anhydrous CeCl~3 reduced by lithium naphthalide with carbonyl compounds and halohydrocarbon

Yang Jinfei;Bao Jianchun;Xiao Yaping;Bei Meizhi   

  1. Nanjing Normal Univ, Dept Chem.Nanjing(210024)
  • Published:1999-02-25

The active cerium metal (Ce^*) prepared by the reduction of anhydrous CeCl~3 with LiNp (Lithium Naphthalide) shows higher reactivity in its action with carbonyl compounds than Nd^* obtained by the same reduction method. The reaction of Ce^* with carbonyl compounds, followed by hydrolysis, produces the corresponding alcohols, pinacols and alkenes depending not only on the reaction time and temperature but also on the nature of the carbonyl compounds and the molar ratio of the Ce^*:RCOR'. Interestingly, the effect of the different molar ratio of CeCl~3:LiNp also shows different reactivity and selectivity oof low valent Ce species. In addition, the reaction of ketones with halohydrocarbon promoted by active cerium metal was also studied.

Key words: HALOHYDROCARBON, SELECTIVITY, ALCOHOL, ALKENE, CARBONYL COMPOUNDS

CLC Number: