申请人:Idaho Research Foundation, Inc.
公开号:US06215021B1
公开(公告)日:2001-04-10
A family of electrophilic trifluoromethylating reagents which can be synthesized by comparatively simple, inexpensive routes, and for which the reactivity can be varied according to need. A composition of matter according to the first embodiment of the invention comprises a compound having the formula:
in which A comprises H or F and B comprises F, SCF3, OCF3, OCHF2, S+(CF3)C6H5, NO2 or an NO2 substituent. In a second embodiment of the invention, a process for preparing a trifluoromethyl diphenylsulfonium triflate compound corresponding to the formula shown above comprises reacting phenyl trifluoromethyl sulfoxide or one of its derivatives with an aromatic compound in which A comprises H or F and B comprises H, F, SCF3, OCF3, OCHF2, S+(CF3)C6H5, NO2 or an NO2 substituent. In a third embodiment of the invention, a trifluoromethylation process comprises reacting a trifluoromethyl diphenylsulfonium triflate corresponding to the formula shown above with an electron rich substrate.
一种电泳性三氟甲基化试剂家族,可以通过相对简单、廉价的途径合成,并且其反应性可以根据需要变化。根据发明的第一种实施方式的物质组成包括具有以下公式的化合物:其中A包括H或F,B包括F、SCF3、OCF3、OCHF2、S+(CF3)C6H5、NO2或NO2取代基。根据发明的第二种实施方式,制备与上述公式相对应的三氟甲基二苯硫酰三氟乙酸盐化合物的方法包括将苯基三氟甲基亚砜或其衍生物与其中A包括H或F,B包括H、F、SCF3、OCF3、OCHF2、S+(CF3)C6H5、NO2或NO2取代基的芳香族化合物反应。根据发明的第三种实施方式,三氟甲基化过程包括将与上述公式相对应的三氟甲基二苯硫酰三氟乙酸盐化合物与富电子基底反应。