Diazines 13: Metalation without Ortho-Directing Group - Functionalization of Diazines via Direct Metalation
作者:Nelly Ple、Alain Turck、Karine Couture、Guy Queguiner
DOI:10.1021/jo00117a033
日期:1995.6
The successful metalation of diazines without an ortho-directing group is described. In some cases, dimers were obtained. The metalation was optimal with LTMP if a 4-fold excess of metalating agent was used, with a very short metalation reaction time at -75 degrees C. This procedure was applied to pyrimidine, 2-substituted pyrimidines, pyridazine, and pyrazine, allowing for the synthesis of various monosubstituted diazines.