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'Diphosphanes' in keywords
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1Author    G. Jochem, A. Schmidpeter, H. NöthRequires cookie*
 Title    Bis(triphenylphosphoniumyIidyl)phosphane Bis(triphenylphosphoniumylidyl)phosphanes  
 Abstract    Bis(ylidyl)phosphanes can be prepared from ylides and dichlorophosphanes or from bis-(ylidyl)phosphenium chlorides and organolithium compounds. By substituting in bis(ylidyl)-phosphenium chlorides the chloride ion for more basic anions, a large variety o f bis(ylidyl)-phosphanes is accessible. They can be protonated at the ylidic carbon atoms, but alkylated and oxidized at the central phosphorus atom. A s shown by 3IP NM R in solution and by X-ray investigation of the crystal, the lone pair at the tervalent phosphorus is generally oriented synperiplanar to both phosphonio groups. 
  Reference    Z. Naturforsch. 51b, 267—2 (1996); eingegangen am 10. Juli 1995 
  Published    1996 
  Keywords    Ylides, Transylidation, Phosphenium Ions, M ichaelis Arbusov Rearrangement, Diphosphanes 
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 TEI-XML for    default:Reihe_B/51/ZNB-1996-51b-0267.pdf 
 Identifier    ZNB-1996-51b-0267 
 Volume    51 
2Author    Florian Breitsameter, Peter Mayer, Alfred SchmidpeterRequires cookie*
 Title    Die Kondensation von Ylidylchlorphosphanen mit Phosphanen und Bis(diphenylphosphanyl)methan und -amin The Condensation o f Ylidyl Chlorophosphines with Phosphines and Bis(diphenylphosphino)methane and -amine  
 Abstract    Ylidyl chlorophosphanes 1 and dichlorophosphanes 2 react with trimethylsilyl phosphanes to yield the ylidyl diphosphanes 3, 4,5, 7 and the 2-ylidyl triphosphanes 8. From the reaction of compounds 1 with lithium diphosphanyl amide and diphosphanyl methanide result the ylidyl diphosphonium ylides 11 and ylidyl diphosphinimines 13. The former rearrange to give the ylidyl triphosphanyl methanes 12. The chloromethyl diphosphinimine 13c enters a cyclization to give the 1,2,3,5-azatriphosphole derivative 14, the structure of which has been solved by X-ray analysis. From the reaction of ylidyl bis(chlorophosphanes) 17 and 20 with the same reagents the 1,2,4,5-tetraphosphinine derivative 18 and the 1,2,3,5,6-azatetraphosphinine derivatives 19 and 21 are obtained. 
  Reference    Z. Naturforsch. 55b, 519—526 (2000); eingegangen am 21. Februar 2000 
  Published    2000 
  Keywords    Phosphonium Ylides, Diphosphanes, 1, 2, 3, 5-Azatriphospholes 
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 TEI-XML for    default:Reihe_B/55/ZNB-2000-55b-0519.pdf 
 Identifier    ZNB-2000-55b-0519 
 Volume    55 
3Author    Marianne Baudler, Helmut Tschäbunin, H. Orst Suchomel, Jürgen HasenbachRequires cookie*
 Title    Beiträge zur Chemie des Phosphors, 228 [1] Funktionalisierte Diphosphane als Synthesebausteine: LiH(f-BuP)2, Li2(r-BuP)2, K2(i-PrP)2, (*-PrP)2Cl2 Contributions to the Chemistry of Phosphorus, 228 [1] Functionalized Diphosphanes as Synthetic Building Blocks: LiH(r-BuP)2, Li2(f-BuP)2, K2(/-PrP)2, (/-PrP)2Cl2  
  Reference    Z. Naturforsch. 49b, 773—7 (1994); eingegangen am 28. März 1994 
  Published    1994 
  Keywords    Diphosphanes, 1 -Lithium-2-hydrogen-1, 2-di-rm-butyldiphosphide, 12-Dilithiurn-l, 2-di-rm-butyldiphosphide, l, 2-Dipotassium -l, 2-diisopropyldiphosphide, 12-Dichloro-l, 2-diisopropyldiphosphane 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0773.pdf 
 Identifier    ZNB-1994-49b-0773 
 Volume    49