Siladifluoromethylation and Deoxo-trifluoromethylation of P<sup>V</sup>–H Compounds with TMSCF<sub>3</sub>: Route to P<sup>V</sup>–CF<sub>2</sub><sup>–</sup> Transfer Reagents and P–CF<sub>3</sub> Compounds
作者:Vinayak Krishnamurti、Colby Barrett、G. K. Surya Prakash
DOI:10.1021/acs.orglett.9b00381
日期:2019.3.1
PV–CF2– transfer reagents is disclosed, with multigram scale reactions included. Condition-dependent divergent reactivity under the established conditions is demonstrated by the formation of trifluoromethylphosphines. Both one-pot transformations are operationally simple and employ inexpensive materials. Mechanistic investigations suggest the divergent reactivity originates from a common intermediate,
公开了一种用TMSCF 3进行二烷基膦酸酯和仲膦氧化物的甲硅烷基氟甲基化以生产亲核性P V –CF 2 –转移试剂的方法,包括多克级反应。在确定的条件下,条件依赖性的发散反应性通过三氟甲基膦的形成来证明。两种一锅式转换操作起来都很简单,并且使用廉价的材料。机理研究表明,不同的反应性源自共同的中间体,其中Li +的浓度指导化学选择性。