Herein α-bromoacrylic acids have been employed as C1 insertion units to achieve the palladium-catalyzed [4 + 1] annulation of 2-iodobiphenyls, which provides an efficient platform for the construction of diverse dibenzofulvenes. This protocol enables the formation of double C(aryl)–C(vinyl) bonds via a C(vinyl)–Br bond cleavage and decarboxylation. It is particularly noteworthy that the method features
在本文中,α-
溴丙烯酸已被用作 C1 插入单元以实现
钯催化的
2-碘联苯的 [4+1] 环化,这为构建各种二苯并富烯提供了一个有效的平台。该协议能够通过 C(
乙烯基)-Br 键裂解和脱羧形成双 C(芳基)-C(
乙烯基)键。特别值得注意的是,该方法具有广泛的底物范围,并且可以成功地将各种有趣的框架,如桥环、稠(杂)芳环和
二乙烯基苯结合到产品中。