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'24 Azadiboretidine Derivatives' in keywords
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1988 (1)
1Author    Bernhard Glaser, ErwinP. Mayer, Heinrich Nöth, Wilfried Rattay, Ulrich WietelmannRequires cookie*
 Title    Beiträge zur Chemie des Bors, 190 [1] Synthese und Molekülstruktur von 1,2-Dihydroboreten und Azadiboretidinen Contribution to the Chemistry of Boron, 190 [1] Synthesis and Molecular Structure of 1,2-Dihydrodiboretes and Azadiboretidines  
 Abstract    [2+2]-Cycloadditions of 9-Fluorenylidentetramethylpiperidinoboranes have been studied with selected olefines, acetylenes and iminoboranes. No reactions with olefines were observed. While propiolic methylester reacts exclusively at the carbonyl bond producing the oxaboretane 5, alkines such as diethylamino-alkines, cyclo-octine and phenylacetylene provide access to the'1,2-dihy-droboretenes 6, 3 and 2. Tetramethylpiperidinoiminoboranes make 1.2.4-azadiboretidines 7 available. 6a and 7a contain a folded four-membered ring as shown by X-ray structure analysis. There is only a weak 1,3-intraannular interaction due to BN-;r-bonding of the boron atoms with their exocyclic amino group. 
  Reference    Z. Naturforsch. 43b, 449—456 (1988); eingegangen am 10. Dezember 1987 
  Published    1988 
  Keywords    Reactivity of Aminomethyleneboranes, Transannular Interaction, X-Ray, 1, 2-Dihydroboret Derivatives, 1, 24-Azadiboretidine Derivatives 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0449.pdf 
 Identifier    ZNB-1988-43b-0449 
 Volume    43