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'Phosphonium Salts' in keywords Facet   Publication Year 1979  [X]
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1Author    HansH. KarschRequires cookie*
 Title    Funktionelle Trimethylphosphinderivate, VIII [1] Phosphoniumsalze, Oxide und Sulfide von Tetraorganodiphosphinomethanen, R2PCH2P(CH3)2  
 Abstract    Tetramethyldiphosphinomethane (CH3)2PCH2(CH3)2 (la) reacts with HCl/ether to form the mono-and bisquaternary salts [(CH3)2PCH2P(H)(CH3)2]C1 (2) and [(CH3)2(H)PCH2P(H)(CH3)2]Cl2 (3), respectively. The system 1 a/HCl, incorporating 1 a/2/3, represents a useful tool for studying the appearance of XnAA'X'n-spin type systems. These compounds are also prototypes for a variety of other mono-or bis-phosphonium salts, which are formed in the reactions of the diphosphines (CH3)2PCH2PR2 (R — CH3, *-C4H9, C6H5) (la-c) with (CH3)2C0 + HC1, CH3I, *-C4H9Br, C6H5C0C1, (CH3)2PC1 and Br(CH2)nBr (n = 1, 2). Heterocycles are not obtained. The dioxide 14 and the disulfide 15 are also described. Some properties and spectroscopic data (IR, 1 H, 31 P and 13 C NMR) of 26 new compounds are reported and briefly discussed. 
  Reference    (Z. Naturforsch. 34b, 31—43 [1979]; eingegangen am 8. September 1978) 
  Published    1979 
  Keywords    Phosphonium Salts, Oxides, Sulfides, NMR 
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 TEI-XML for    default:Reihe_B/34/ZNB-1979-34b-0031.pdf 
 Identifier    ZNB-1979-34b-0031 
 Volume    34