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  • Title: Stannylative cycloaddition of enynes catalyzed by palladium-iminophosphine.
    Author: Nakao Y, Hirata Y, Ishihara S, Oda S, Yukawa T, Shirakawa E, Hiyama T.
    Journal: J Am Chem Soc; 2004 Dec 08; 126(48):15650-1. PubMed ID: 15571380.
    Abstract:
    Palladium-iminophosphine complex catalyzes stannylative cycloaddition of conjugated enynes using hexabutyldistannoxane as a stannylating agent to afford highly substituted 3-alkenylphenylstannanes regioselectively. Stannylative cross-cycloaddition reactions between different enynes or between enynes and diynes are also achieved. The reaction is successfully applied to a concise synthesis of alcyopterosin N, which has been isolated recently from sub-Antarctic soft coral, Alcyonium paessleri.
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