75476-55-0Relevant articles and documents
Manganese-Catalyzed Dehydrogenative Silylation of Alkenes following Two Parallel Inner-Sphere Pathways
Weber, Stefan,Glavic, Manuel,St?ger, Berthold,Pittenauer, Ernst,Podewitz, Maren,Veiros, Luis F.,Kirchner, Karl
supporting information, p. 17825 - 17832 (2021/11/04)
We report on an additive-free Mn(I)-catalyzed dehydrogenative silylation of terminal alkenes. The most active precatalyst is the bench-stable alkyl bisphosphine Mn(I) complex fac-[Mn(dippe)(CO)3(CH2CH2CH3)]. The catalytic process is initiated by migratory insertion of a CO ligand into the Mn-alkyl bond to yield an acyl intermediate which undergoes rapid Si-H bond cleavage of the silane HSiR3 forming the active 16e- Mn(I) silyl catalyst [Mn(dippe)(CO)2(SiR3)] together with liberated butanal. A broad variety of aromatic and aliphatic alkenes was efficiently and selectively converted into E-vinylsilanes and allylsilanes, respectively, at room temperature. Mechanistic insights are provided based on experimental data and DFT calculations revealing that two parallel reaction pathways are operative: an acceptorless reaction pathway involving dihydrogen release and a pathway requiring an alkene as sacrificial hydrogen acceptor.
Carbon supported hybrid catalysts for controlled product selectivity in the hydrosilylation of alkynes
Roemer, Max,Gon?ales, Vinicius R.,Keaveney, Sinead T.,Pernik, Indrek,Lian, Jiaxin,Downes, James,Gooding, J. Justin,Messerle, Barbara A.
, p. 1888 - 1898 (2021/03/26)
A series of Rh- and Ir-hybrid catalysts with varying tether lengths has been prepared by immobilization of RhI, RhIIIand IrIIIcomplexes on carbon blackviaradical grafting. The performance of the different catalysts was ass
Atomically dispersed gold anchored on carbon nitride nanosheets as effective catalyst for regioselective hydrosilylation of alkynes
Chen, Zheng,Feng, Xueqing,Guo, Jiahui,Wang, Songrui,Wu, Qikang
supporting information, p. 17885 - 17892 (2021/08/30)
The hydrosilylation of alkynes is a powerful process for producing vinylsilane compounds, which are synthetically versatile organosilicon reagents in organic chemistry. Herein, atomically dispersed Au anchored on g-C3N4 nanosheets is developed as a superi