Vinylic bromides of type 1 undergo cross‐coupling reactions with diphenylacetylene (5) leading to various polycyclic hydrocarbons. The ratio of the 1:1 to the 1:2 products can readily be controlled by varying the reaction conditions.
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Synthesis and Palladium-Catalyzed Transformation of an AnellatedBarrelene. -A three-step procedure for the synthesis of the barrelene (V) is presented. It is tested as coupling component in a Pd-catalyzed reaction to give polycyclic products. -(DYKER, G.; KERL, T.; JONES, P. G.; DIX, I.; BUBENITSCHEK, P.; J.
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Synthesis of Polycyclic Hydrocarbons byPalladium-Catalyzed Cross-Coupling Reactions of Vinylic Bromides with Diphenylacetylene. -The product ratios in the title reactions of diphenylacetylene (II) with the vinylic bromides (I), (IV), and (VII) are controlled by varying the concentrations. -(DYKER, G.; SIEMSEN, P.; SOSTMANN, S.; WIEGAND, A.; DIX, I.; JONES, P. G.; Chem. Ber./Recl. 130 (1997) 2, 261-265; Org./Metallorg.
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