Transition metal mediated oxidation of hetero atoms in organic molecules coordinated to transition metals
申请人:Wheelock S. Kenneth
公开号:US20070203195A1
公开(公告)日:2007-08-30
The present invention is directed to a process for the catalytic oxidation of the thioether 5-methoxy-2-((4-methoxy-3,5-dimethyl-2-pyridinyl)methyl)methylthio)-1H-benzimidazole to its sulfoxide: 5-methoxy-2-((4-methoxy-3,5-dimethyl-2-pyridinyl)methyl)methylsulfinyl)-1H-benzimidazole comprising: reacting the thioether with: 1) a transition metal catalyst; and, 2) an oxygen source; wherein the thioether is oxidized to a sulfoxide and wherein one of either the R and S enantiomers is formed to an enantiomeric excess.
本发明涉及一种用于催化氧化硫醚5-甲氧基-2-((4-甲氧基-3,5-二甲基-2-吡啶基)甲基)甲硫基)-1H-苯并咪唑至其亚砜:5-甲氧基-2-((4-甲氧基-3,5-二甲基-2-吡啶基)甲基)甲亚砜)-1H-苯并咪唑的过程,包括:将硫醚与:1)过渡金属催化剂反应;和2)氧源反应;其中硫醚被氧化为亚砜,并形成R和S对映体之一至对映过量。