404573-66-6Relevant articles and documents
Synthesis and characterization of cationic rhodium complexes with stable silylenes
Neumann, Eva,Pfaltz, Andreas
, p. 2008 - 2011 (2005)
Two cationic rhodium(I)-tetrasilylene complexes, [Rh(SitBuNHC=CHNtBu) 4]BArF (4; BArF = tetrakis[3,5- bis(trifluoromethyl)phenyl]borate) and [Rh-(SitBuNH2C=CH 2NtBu)4]BArF (5), were prepared from [Rh(cod)2]BArF and 1,3-di-tert-butyl-2,3-dihydro-1H-1,3,2- diazasilol-2-ylidene (1) or its saturated analogue 2, respectively (Figure 1). The two complexes were characterized by X-ray analysis and NMR spectroscopy. The crystal structures revealed a square-planar coordination geometry for both complexes. Only tetrakis-(silylene) complexes were formed, even in the presence of less than 4 equiv of silylene.
Anti-Markovnikov Hydroamination of Homoallylic Amines
Ensign, Seth C.,Vanable, Evan P.,Kortman, Gregory D.,Weir, Lee J.,Hull, Kami L.
supporting information, p. 13748 - 13751 (2016/01/15)
The development of an anti-Markovnikov-selective hydroamination of unactivated alkenes is a significant challenge in organometallic chemistry. Herein, we present the rhodium-catalyzed anti-Markovnikov-selective hydroamination of homoallylic amines. The proximal Lewis basic amine serves to promote reactivity and enforce regioselectivity through the formation of the favored metallacycle, thus over-riding the inherent reactivity of the alkene. The scope of both the amine nucleophiles and homoallylic amines that participate in the reaction is demonstrated.
