Use of sulfur derivatives as an<i>ortho</i>directing group for the metalation of diazines. Metalation of diazines.<b>XVIII</b>
作者:Alain Turck、Nelly Plé、Paméla Pollet、Ljubica Mojovic、Jack Duflos、Guy Quéguiner
DOI:10.1002/jhet.5570340245
日期:1997.3
The metalation of thioethers, methyl and phenyl sulfoxides and sulfones of pyrazine and pyridazine has been performed. Methyl sulfoxides and sulfones were first metalated on the methyl group. The ortho directing effect of thioethers, sulfoxides and sulfones have been compared with the methoxy group. The sulfoxides were shown to be very good ortho directing groups.
进行了吡嗪和哒嗪的硫醚,甲基和苯基亚砜和砜的金属化。甲基亚砜和砜首先在甲基上金属化。已将硫醚,亚砜和砜的邻位导向作用与甲氧基进行了比较。亚砜被证明是非常好的邻位导向基团。