A convenient preparation of symmetrical and unsymmetrical 1,2-diketones: application to fluorinated phenytoin synthesis
作者:Philip C. Bulman Page、Andrew E. Graham、B.Kevin Park
DOI:10.1016/s0040-4020(01)88265-x
日期:1992.1
1,2-Diketones are efficiently produced in two steps by reaction of aldehydes with anions derived from 2-substituted dithianes followed by treatment of the resulting alcohols with NBS in aqueous acetone; phenytolin derivatives were prepared from these diketones by a standard method involving treatment with urea and potassium hydroxide under reflux.