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pro vyhledávání: '"Louis A. Kapicak"'
Autor:
Louis S. Kapicak, Koppaka V. Rao
Publikováno v:
Journal of Heterocyclic Chemistry. 13:1073-1077
Oxidation of the alkaloids (-)tylocrebrine, (-)septicine and (±)canadine by N-bromosuccinimide gave the corresponding tetradehydroiminium salts in which the six-membered heterocyclic rings were aromatized. Evidence was provided for the preferred pat
Publikováno v:
Tetrahedron Letters. 8:4447-4450
Publikováno v:
Synthetic Communications. 3:311-315
The acid-catalyzed bridge cleavage reactions of 8-oxabi-cyclo [3.2.1.] octa-2,5-dienes (1) are of considerable synthetic as well as mechanistic interest since they potentially provide a direct route to aromatic tropylium systems (equation 1). We now
Autor:
Louis A. Kapicak, Merle A. Battiste
Publikováno v:
Synthesis. 1971:153-154
Autor:
Louis A. Kapicak, Merle A. Battiste
Publikováno v:
Journal of the Chemical Society, Chemical Communications. :930
Benzyne reacts with [2,2](2,5)-furanophane (1) to afford a non-internally cyclized 1:1 adduct (2) which on further reaction yields the first example, (3), of a 2:1 cycloadduct in this series.