Preparation of imidazolinium salts by the Pd-catalyzed reduction of thioureas with triethylsilane and trialkylsilyl triflate
作者:Takehiko Matsumura、Masahisa Nakada
DOI:10.1016/j.tetlet.2014.01.022
日期:2014.2
A Pd-catalyzed method for the preparation of imidazolinium salts from the corresponding thioureas that could then be used for the synthesis of imidazolium and amidinium salts is described. This method has great potential because all the required reagents are readily available and thioureas are safely converted to their corresponding precursors of NHCs under mild conditions.
描述了由相应的硫脲制备咪唑啉鎓盐的Pd催化方法,该方法随后可用于合成咪唑鎓盐和idi鎓盐。该方法具有巨大的潜力,因为所有所需的试剂都易于获得,并且硫脲在温和的条件下可以安全地转化为其相应的NHCs前体。