1989
DOI: 10.1002/anie.198910381
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Synthesis, Characterization, and Complexation of an Unusual P2Si2 Bicyclobutane with Butterfly‐Structure: 2,2,4,4‐Tetramesityl‐1,3‐diphospha‐2,4‐disilabicyclo[1.1.0]butane

Abstract: Reaction of white phosphorus with dimesityldisilene in toluene at 40°C affords an 87% yield of the P2Si2 bicyclobutane 1, which reacts further with [(PPh3)2Pt(C2H4)] to give hetero[1.1.1]propellane 2.

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Cited by 88 publications
(29 citation statements)
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“…The main‐group‐element (E)‐mediated activation of phosphorus takes place by insertion or double insertion of E into the P 4 core, which often leads to the formation of a PE bond with the retention of the P 4 framework. Fragmentation of P 4 to P 2 or P 1 species is exceedingly rare with the exception of work by the groups of Bertrand,3 West,4 Roesky,5 and Power6 on fragmentation and degradation of P 4 by cyclic and acyclic (alkyl)(amino)carbenes (cAAC and aAAC), disilene, functionalized silylenes, and dithallene (TlAr) 2 (Ar=2,6‐(2,6‐ i Pr 2 C 6 H 3 ) 2 C 6 H 3 ), respectively. Relative to main‐group compounds, the fragmentation of P 4 by early and late transition metals (TMs) is well‐documented and many P 1 ‐, P 2 ‐, P 3 ‐, and P 4 ‐containing species have been isolated 2ad.…”
Section: Methodsmentioning
confidence: 99%
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“…The main‐group‐element (E)‐mediated activation of phosphorus takes place by insertion or double insertion of E into the P 4 core, which often leads to the formation of a PE bond with the retention of the P 4 framework. Fragmentation of P 4 to P 2 or P 1 species is exceedingly rare with the exception of work by the groups of Bertrand,3 West,4 Roesky,5 and Power6 on fragmentation and degradation of P 4 by cyclic and acyclic (alkyl)(amino)carbenes (cAAC and aAAC), disilene, functionalized silylenes, and dithallene (TlAr) 2 (Ar=2,6‐(2,6‐ i Pr 2 C 6 H 3 ) 2 C 6 H 3 ), respectively. Relative to main‐group compounds, the fragmentation of P 4 by early and late transition metals (TMs) is well‐documented and many P 1 ‐, P 2 ‐, P 3 ‐, and P 4 ‐containing species have been isolated 2ad.…”
Section: Methodsmentioning
confidence: 99%
“…The reaction was monitored by 31 P{ 1 H} NMR spectroscopy and only one resonance, at δ =−370.9 ppm, was observed, indicating the formation of 4 as the sole hydrocarbon‐soluble P‐containing species. Other three‐membered rings containing a PP bond show resonances at lower field (−315.0 to −324.0 ppm) 4. 15…”
Section: Methodsmentioning
confidence: 99%
“…[7] Wief ür eine "normale" Polarisierung der P=Si-Bindung zu erwarten, ist die Koordinationssphäre um Si2 perfekt planar (Winkelsumme an Si2:3 60.08 8), anders als im Fall von E-2 (Winkelsumme an Si2:358.858 8). Von den mçglichen P/SiR-Permutationens ind allerdings bis jetzt nur Bicyclo[1.1.0]butan-Analoga als stabile Derivate bekannt:1 ,3-Diphospha-2,4-disilabicyclo[1.1.0]butan [20] und 1,2,3-Triphospha-4-silabicyclo[1.1.0]butane. 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.…”
unclassified
“…Von den mçglichen P/SiR-Permutationens ind allerdings bis jetzt nur Bicyclo[1.1.0]butan-Analoga als stabile Derivate bekannt:1 ,3-Diphospha-2,4-disilabicyclo[1.1.0]butan [20] und 1,2,3-Triphospha-4-silabicyclo[1.1.0]butane. [17,[20][21][22] Im Übrigen wird das gleiche Produkt bei einer einfachen Eintopfsynthese ausgehend von 1 ohne Isolierung des Phosphasilens 2 erhalten. Jedoch liefert Erhitzen auf 65 8 8Cf ür 3S tunden quantitativ ein neues Produkt mit einem 31 P-Signal bei d = À212.3 ppm, was die Abwesenheit einer Si = P-Bindung nahelegt (Schema 1).…”
unclassified
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