Fluorinated building blocks by CF bond cleavage: CatalyticCFactivation reactions that give novel dioxaborolanes have been developed (see scheme). The reactions proceed at room temperature, and catalytic intermediates are presumably rhodium hydride and boryl species.
Reactivity of 3,3,3-Trifluoropropyne at Rhodium Complexes: Development of Hydroboration Reactions
作者:Cortney N. von Hahmann、Maria Talavera、Conghui Xu、Thomas Braun
DOI:10.1002/chem.201801662
日期:2018.8.1
The rhodium compounds [Rh(C≡CCF3)(PEt3)3] (2), fac‐[RhH(C≡CCF3)2(PEt3)3] (3), and fac‐[Rh(E)‐CH=CHCF3}(C≡CCF3)2(PEt3)3] (4) were synthesized by reactions of the rhodium(I) complexes [Rh(H)(PEt3)3] (1) and [Rh(Bpin)(PEt3)3] (5, HBpin=pinacolborane) with the alkyne 3,3,3‐trifluoropropyne. Reactivity studies of [Rh(C≡CCF3)(PEt3)3] (2) were performed with CO and 13CO to form [Rh(C≡CCF3)(CO)(PEt3)3] (7)