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'Elimination Reactions' in keywords
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1993 (1)
1992 (1)
1Author    ThomasD. Smith, PeterG. Jones, Reinhard SchmutzlerRequires cookie*
 Title    The Role of Elimination Processes in the Reaction of Substituted Ureas and Thioureas with Chlorides of Mono-and Bifunctional Acids  
  Reference    Z. Naturforsch. 47b, 526—532 (1992); received August 29 1991 
  Published    1992 
  Keywords    Reactive Halides, Substituted Ureas, Elimination Reactions, X-Ray 
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 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-0526.pdf 
 Identifier    ZNB-1992-47b-0526 
 Volume    47 
2Author    Christian Klasen, Guido Effinger, Siegbert Schmida, Ingo-Peter LorenzRequires cookie*
 Title    Offene und geschlossene P-funktionalisierte Diferriophosphonium-Salze des Typs |{CpFe(CO)2}2P(Ph)Rl+ X " bzw. |{/i-CO (CpFeCO)2}P(Ph)R |+ X"  
 Abstract    Open and Closed P-Functionalized Diferriophosphonium Salts of the Type [{CpFe(CO)2}2P (P h)R r X" and [{//-CO(CpFeCO)2}P(Ph)R]+ X" The reaction o f Ph(R)PSiM e3 with an excess o f C pFe(CO)2Cl results in the elimination o f M e3SiCl to give the open diferriophosphonium halides [{C pF e(C O),}2P(Ph)R]Cl (R = H, Ph, C H 2SiM e3, Me) (1 a-d). The deprotonation reaction o f 1 a with KOBu' at -7 8 °C results in the formation o f the unstable diferriophosphane {CpFe(CO)2} 2PPh (3), which reacts with alky­ lating reagents RX (R = Me, C H 2Ph, C H 2COOEt; X = Cl, I) to give the P-functionalized di­ ferriophosphonium halides [{CpFe(CO)2} 2P(Ph)R]X (ld '-f) The light-sensitive compounds l b -f are found to eliminate readily a CO ligand upon photolysis to give the corresponding closed P-functionalized diferriophosphonium salts [{//-CO (CpFeC O)2}P(Ph)R]X (2 b -f) with a bridging CO ligand and a F e -F e bond. The mass, IR and N M R spectra o f 1, 2 and the results o f a crystal structure determination o f [{//-CO (CpFeC O)2}PPh2]BPh4 (2b') are report­ ed and discussed. 
  Reference    Z. Naturforsch. 48b, 705 (1993); eingegangen am 31. August 1992 
  Published    1993 
  Keywords    Phosphido Bridges, Diferriophosphane Intermediate, Diferriophosphonium Salts, Elimination Reaction 
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 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-0705.pdf 
 Identifier    ZNB-1993-48b-0705 
 Volume    48