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'Cycloaddition Reaction' in keywords Facet   Publication Year 1987  [X]
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1Author    Hans Möhrle, Heinz DwuletzkiRequires cookie*
 Title    Lactamacetale als potentielle Enamin-Synthone in Heterocyclensynthesen 3. Mitteilung: Das Sarkosinanhydrid-monoIactamacetal-System in Cycloadditionsreaktionen Lactam Acetals as Potential Enamine Synthons in Heterocyclic Synthesis 3rd Communication: The Sarcosinanhydride-monolactamacetal System in Cycloaddition Reactions  
 Abstract    Sarcosinanhydride-monolactamacetal (7) furnishes an equilibrium concentration of the elec-tronically activated tetrahydropyrazine 3b which yields in contrast to other pyrazine derivatives with 4-nitrophenylazide (4) the cycloaddition product 9. Catalytic cleavage of 9 leads to the triazene compound 11. 
  Reference    Z. Naturforsch. 42b, 229—232 (1987); eingegangen am 26. September 1986 
  Published    1987 
  Keywords    Lactam Acetals, Heterocyclic Synthesis, Cycloaddition Reactions, Triazene 
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 TEI-XML for    default:Reihe_B/42/ZNB-1987-42b-0229.pdf 
 Identifier    ZNB-1987-42b-0229 
 Volume    42 
2Author    Hans Möhrle, Heinz DwuletzkiRequires cookie*
 Title    Einstufen-Synthese des y-Carbolingerüsts durch Diels-Alder-Reaktion von Indol-"Keten-N,0-acetalen" Lactam Acetals as Potential Enamine Synthons in Heterocyclic Synthesis, 4th Communication One Step Synthesis of the y-Carboline Frame via Diels-Alder Reaction of Indol-"K etene-N .O -A cetals"  
 Abstract    2-Alkoxy-indoles 2a, b can be regarded as cyclic ketene-N .O -acetals. Their regiospecific [4+2]-Diels-A lder reaction with inverse electron dem and with the triazine 3 yield in a one step addition the y-carboline (4). 
  Reference    Z. Naturforsch. 42b, 1032—1034 (1987); eingegangen am 5. März 1987 
  Published    1987 
  Keywords    Lactam A cetals, Heterocyclic Synthesis, Cycloaddition Reactions, y-Carbolines 
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 TEI-XML for    default:Reihe_B/42/ZNB-1987-42b-1032.pdf 
 Identifier    ZNB-1987-42b-1032 
 Volume    42 
3Author    RichardP. Kreher, Gerald Dyker, WilhelmP. NeumannRequires cookie*
 Title    Structure and Reactivity of Isoannelated Heterocyclic Systems with Ann-and (4n+2)jr-Electrons, XII [1] 2-terr-Butyl-4-methyl-2,4-dihydropyrrolo[3,4-b]indoles: Tricyclic Hetarenes with Isoannelated Pyrrole Rings  
  Reference    Z. Naturforsch. 42b, 473—477 (1987); eingegangen am 14. November 1986 
  Published    1987 
  Keywords    Substituted 2, 3-Dihydropyrrolo[3, 4-b]indoles, Synthesis, Isolation, Spectroscopic Properties, Cycloaddition Reactions 
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 TEI-XML for    default:Reihe_B/42/ZNB-1987-42b-0473.pdf 
 Identifier    ZNB-1987-42b-0473 
 Volume    42