19116-66-6Relevant articles and documents
Potassium Alkylpentafluorosilicates, Primary Alkyl Radical Precursors in the C-1 Alkylation of Tetrahydroisoquinolines
Wang, Teng,Wang, Dong-Hui
supporting information, p. 3981 - 3985 (2019/06/14)
In this study, we demonstrate that potassium alkylpentafluorosilicates (RSiF5K2) are efficient primary alkyl radical precursors for selective C(sp3)-C(sp3) bond-forming reactions. RSiF5K2 reagents are white, free-flowing solids and are moisture and air stable. This class of reagents enables the direct C-1 alkylation of tetrahydroisoquinolines under mild conditions via single-electron transfer. The broad substrate scope of both alkylpentafluorosilicates and tetrahydroisoquinolines is tolerated in this transformation. Both radical scavenger and EPR capture experiments show that the primary radical is generated by the oxidation of RSiF5K2. A mechanism involving alkyl radical addition to an iminium salt followed by reduction by an amine is proposed.
SATURATED N-HETEROCYCLIC CARBENE-LIGAND METAL COMPLEX DERIVATIVES, PREPARING METHOD THEREOF, AND PREPARING METHOD OF SILANE COMPOUND BY HYDROSILYLATION REACTION USING THE SAME AS CATALYST
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Page/Page column 9; 10, (2011/07/08)
Provided are a saturated N-heterocyclic carbene-ligand metal complex derivative, a method for preparing the same, and a method for preparing a silane compound by hydrosilylation using the same as a catalyst. To describe in more detail, the metal complex derivative has a saturated N-heterocyclic carbene derivative and an olefin ligand at the same time. A silane compound is prepared by hydrosilylation in the presence of the metal complex derivative as a catalyst. The provided metal complex derivative of the present invention has superior stability during hydrosilylation reaction and is capable of effectively performing the hydrosilylation reaction at low temperature even with small quantity. Further, a product with superior regioselectivity may be obtained. In addition, after the hydrosilylation reaction is completed, the metal complex derivative may be recovered and recycled.
PREPARATION AND STUDY OF NOVEL SILATRANE DERIVATIVES
Hencsei, P.,Bihatsi, L.,Kovacs, I.,Szalay, E.,Karsai, E. B.,at al.
, p. 261 - 268 (2007/10/02)
The following silatrane derivatives have been prepared: , where R=3-ClC6H4O, 2,4-(NO2)2C6H3O, 2,5-(NO2)2C6H3O, 4-ClC6H4CH2CH2, 4-BrC6H4, C3H7.Infrared, (1)H NMR and mass spectra of these compounds have been determined: for three compounds Raman spectra