2011
DOI: 10.1016/j.jorganchem.2010.07.008
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Silicon version of enamines: Amino-substituted disilenes by the reactions of the disilyne RSi SiR (R = Si Pr[CH(SiMe3)2]2) with amines

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Cited by 32 publications
(32 citation statements)
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“…Moreover, the Si1-N1-C1 angle in 5 (158.7 (3)8) is significantly larger than that of imino-silylene 3 (136.6(4)8), which indicates that the N1 atom has lower p character. [29,33] In summary, we have synthesized a novel acyclic silylene 3 by the reduction of dibromosilane 2. [20,24] The geometry around the silicon atom of 5 is planar, which was confirmed by the sum of the three bond angles around the Si1 atom (359.948).…”
mentioning
confidence: 99%
“…Moreover, the Si1-N1-C1 angle in 5 (158.7 (3)8) is significantly larger than that of imino-silylene 3 (136.6(4)8), which indicates that the N1 atom has lower p character. [29,33] In summary, we have synthesized a novel acyclic silylene 3 by the reduction of dibromosilane 2. [20,24] The geometry around the silicon atom of 5 is planar, which was confirmed by the sum of the three bond angles around the Si1 atom (359.948).…”
mentioning
confidence: 99%
“…Während bei Raumtemperatur keine erkennbare Reaktion stattfand, führte Erwärmen von Mesityllithium mit 2 in Toluol auf 60 8 8Cf ür 60 ht atsächlich zu einer selektiven und vollständigen Umsetzung. Die Polarisierung in Richtung des Phosphoratoms wird durch die 29 Si-NMR-Resonanz von E-3 bei 193.9 ppm, also um Dd = 90 ppm tieffeldverschoben relativ zu der von E-2 (103.5 ppm), bestätigt. [13] Die 31 P-NMR-Resonanzen von E/Z-3 bei d = 234.4 und 217.9 ppm (E/Z-Verhältnis:84:16) befinden sich im typischen Bereich für Si=P-Bindungen.…”
unclassified
“…Wir erwarteten das Phosphatrisila-1,3-butadien [4]und/oder seine Isomere als mçgliche Produkte.Für das verwandte homonukleare Si 4 R 6 -Gerüst wurde über Analoga von 1,3-Butadien, [16] Bicyclo[1.1.0]butan [17] und Cyclobuten [18,19] berichtet. [13] Drei 29 Si-NMR-Dubletts bei d = À5.1 ( 1 J Si-P = 84.7 Hz), À39.5 ( 1 J Si-P = 84.7 Hz) und À119.8 ppm ( 1 J Si-P = 5.2 Hz) wurden beobachtet. [21] Eine Lçsung von Disilenid 1 und P-Dimethylamino-Phosphasilen 2 in Toluol zeigt keine Reaktion bei Raumtemperatur.…”
unclassified
“…The disilyne 20 reacts with a variety of amines (primary or secondary) to give the 1,2-hydroamination products 37. 33,36 If the amine is sufficiently small, the addition of a second equivalent occurs to give the diaminodisilane 38 (of the amines tested only pyrrolidine was small enough). The addition of the second amine is regiospecific because of the polarity induced on the double bond by the first addition (see resonance structure 37¤¤).…”
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confidence: 99%
“…Again, these results were confirmed by theoretical studies. 36 It is important to point out once again that this fundamental look into the nature of the Si=Si bond was only possible by the unique reactivity of disilynes.…”
mentioning
confidence: 99%