coupling reaction of the α-bromoalkenylphosphonates with organoboranes was investigated. The palladium-catalyzed arylation took place successfully with arylboronic acids, while alkenylation proceeded with lithium alkenylborates and a nickel catalyst. In addition, an intramolecular Diels–Alder reaction of the diene prepared by the alkenylation afforded the corresponding adduct.
研究了α-
溴烯基
膦酸酯与有机
硼烷的偶联反应。
钯催化的芳基化反应通过芳基
硼酸成功进行,而烯基化反应则通过链烯基
硼酸锂和
镍催化剂进行。另外,通过烯基化反应制备的二烯的分子内Diels-Alder反应得到相应的加合物。