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1976 (1)
1Author    Peter Paetzold, Peter Böhm, Anette Richter, Ernst SchollRequires cookie*
 Title    Synthese, Basenaddition und Fragmentierung der 1.3.2-Dioxaborolan-4-one Synthesis, Addition of Bases, and Fragmentation of l,3,2-Dioxaborolane-4-ones  
 Abstract    2,5,5-Triorgano-l,3,2-dioxaborolane-4-ones RB(-O-CO-CXY-O-) (2-6) can be prepared from a-hydroxycarboxylic acids XYC(OH)-COOH and dihalogenoorganoboranes RBHal2. They are much weaker Lewis acids than the 2-organo-l,3,2-dioxaborolane-4,5-diones RB(-O-CO-CO-O-) (1). The compounds 1 give 1:1 adducts with the bases DINO, MANO, PyO, and PSy, respectively; the crystal structure determination of If • DINO reveals a simple BO-coordination between the components. On electron impact, the chief fragmen-tation path is the elimination of C02 from compounds 1-6. The thermal degradation of 2-6 seems to be rather complicated in the liquid phase but is unique in the gaseous phase forming the compounds (RBO)3, CO, and XYC = 0. 
  Reference    (Z. Naturforsch. 31b, 754—764 [1976]; eingegangen am 5. Dezember 1975/8. März 1976) 
  Published    1976 
  Keywords    Dioxaborolanones, Molecular Structure, Mass Spectra, Crystal Structure, Gas-phase Thermolysis 
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 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0754.pdf 
 Identifier    ZNB-1976-31b-0754 
 Volume    31