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1980 (1)
1Author    Udo Kunze, S.Budhi SastrawanRequires cookie*
 Title    Reaktivität metallorganischer Komplexe mit Zinn-Metall-Bindung, IV [1] S02 -Insertion an phosphinsubstituierten und anionischen Triorganozinn-Komplexen des Chroms, Molybdäns und Wolframs Reactivity of Organometallic Complexes Containing Tin-Metal Bonds, IV [1] SO2 Insertion into Phosphine Substituted and Anionic Triorganotin Complexes of Chromium, Molybdenum and Tungsten  
 Abstract    The trans phosphane and phosphite substituted organotin complexes of molybdenum 1-4 are prepared by thermolysis or photolysis of the tricarbonyl parent compounds. The phosphane complexes 1 and 2 react readily with liquid sulfur dioxide by absorption of 1-3 moles of SO2 depending on temperature. IR and NMR spectra indicate cleavage of tin-carbon bonds only yielding insertion products of the sulfinato-0 type la-c and 2a-c. The phosphite complexes 3, 4 are less reactive and yield a di-insertion 3 a and a mono-insertion compound 4 a. The anionic triphenyltin derivatives of chromium, molybdenum and tungsten 5-7 undergo facile cleavage of 1 (Cr) or 3 (Mo, W) tin-phenyl bonds. The course of SO2 insertion into 1-7 reveals a distinct activation of the Sn-C bond in organotin transition metal complexes by substitution with stronger donor molecules or reduction to anionic species. 
  Reference    Z. Naturforsch. 35b, 421—427 (1980); eingegangen am 14. November/28. Dezember 1979 
  Published    1980 
  Keywords    S02-Insertion, Organotin Complexes, Phosphane Ligand, Phosphite Ligand, Anionic Complexes 
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 TEI-XML for    default:Reihe_B/35/ZNB-1980-35b-0421.pdf 
 Identifier    ZNB-1980-35b-0421 
 Volume    35