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'Halostannyl Aminobutyric Acid Derivatives' in keywords Facet   section ZfN Section B  [X]
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1997 (1)
1Author    Z. NaturforschRequires cookie*
 Title    Synthese und Reaktivität von 7-Triphenylstannyl-a-am inobuttersäure- derivaten  
 Abstract    Ph3SnCH2CH 2C H (NHCOOCH 2P h)COOCH3 (1) is synthesized by hydrostannation of methyl N-(benzyloxycarbonyl)vinylglycinate with Ph3SnH. The reaction o f 1 with HC1 in CH 3OH and with bromine in CHC13 yields the halostannylsubstituted compounds Ph3_"X,?SnCH2CH 2C H(NHCOOCH 2Ph)C OOCH3 (2 -4) (n = 1, 2; X = Cl, Br). By sapo­ nification with one equivalent of NaOH and subsequent acidification with HCl 1 is transformed into the free acid Ph3SnCH2C H 2C H(NHCOOCH2Ph)COOH (5) that undergoes cyclization into the 1,2-oxastanninane 6 with intramolecular elimination of benzene. IR, NMR data and the determination of the crystal structure of Ph2BrSnCH2CH2CH(NHCOOCH2Ph)COOCH3(3) reveal for 2 and 3 an intramolecular coordination of the N C (0)0-group at the tin atom to form a seven-membered ring. 
  Reference    (Z. Naturforsch. 52b, 9—16 [1997]; eingegangen am 20. August 1996) 
  Published    1997 
  Keywords    Triphenylstannyl Aminobutyric Acid Derivatives, Halostannyl Aminobutyric Acid Derivatives, IR Spectra, NMR Spectra, X-Ray 
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 TEI-XML for    default:Reihe_B/52/ZNB-1997-52b-0009.pdf 
 Identifier    ZNB-1997-52b-0009 
 Volume    52