75070-85-8Relevant articles and documents
C-H and C-F bond activation reactions of pentafluorostyrene at rhodium complexes
Xu, Conghui,Talavera, Maria,Sander, Stefan,Braun, Thomas
supporting information, p. 16258 - 16267 (2019/11/13)
The rhodium(i) complexes [Rh(Bpin)(PEt3)3] (1), [Rh(H)(PEt3)3] (5) and [Rh(Me)(PEt3)3] (14) were employed in reactions with pentafluorostyrene affording coordination of the olefin and C-F o
Catalytic borylation of SCF3-functionalized arenes by rhodium(I) boryl complexes: Regioselective C-H activation at the ortho-position
Kallaene, Sabrina I.,Braun, Thomas
supporting information, p. 9311 - 9315 (2014/11/07)
An unprecedented reaction pathway for the borylation of SCF 3-containing arenes using [Rh(Bpin)(PEt3)3] (pin=pinacolato) is reported. Catalytic processes were developed and the functionalizations proceed under mild reaction conditions. The C-H activations occur with a unique regioselectivity for the position ortho to the SCF 3 group, which apparently serves as directing group. Borylated SCF3 compounds can serve as versatile building blocks. SCF 3 building blocks: A unique reaction route allows access to SCF 3-functionalized arenes, which are borylated at the ortho-position. The functionalization proceeds by C-H borylation with [Rh(Bpin)(PEt 3)3] (pin=pinacolato), and the SCF3 group likely serves as directing group. The generated borylated SCF3 compounds are versatile building blocks for further transformations.
Synthesis of rhodium(I) boryl complexes: Catalytic N-H activation of anilines and ammonia
Teltewskoi, Michael,Kallaene, Sabrina I.,Braun, Thomas,Herrmann, Roy
, p. 5762 - 5768 (2013/12/04)
The treatment of the rhodium methyl complex [Rh(Me)(PEt3) 3] (1) with diboranes B2[(OR)2]2 gave the 16-valence-electron rhodium(I) boryl complexes [Rh{B(OR) 2}(PEt3)3] [2: (OR)2 = pin = pinacolato, O2C2Me4; 3: (OR)2 = cat = catecholato, O2C6H4; 4: (OR)2 = O2C5H10]. The reactions of 2 and 4 with anilines yielded the amidoboranes HN[B(OR)2](R′) [6: B(OR) 2 = Bpin, R′ = C6F5; 7: B(OR)2 = Bpin, R′ = Ph; 8: B(OR)2 = BO2C5H 10, R′ = Ph] and the rhodium hydrido complex [Rh(H)(PEt 3)3] (5) by N-H activation. The addition of ammonia to 2 resulted in the generation of the amine HN(Bpin)2 (9) as well as 5. The amidoboranes 6, 7, and 9 can also be synthesized catalytically with turnover numbers of 10 for 9 and 8 for 6 and 7. Sixteen-electron RhI boryl complexes are synthesized and used for N-H bond activation reactions of anilines. The treatment of [Rh(Bpin)(PEt3)3] (HBpin = pinacolborane) with NH3 yields the diborylamine HN(Bpin)2. The stoichiometric conversion led to the development of a new catalytic process, and [Rh(Bpin)(PEt3)3] is used as a catalyst to convert NH3 and B2pin2 into HN(Bpin) 2 at room temperature. Copyright