α-Bromoacrylic Acids as C1 Insertion Units for Palladium-Catalyzed Decarboxylative Synthesis of Diverse Dibenzofulvenes
作者:Minghao Zhang、Wenbo Deng、Mingjie Sun、Liwei Zhou、Guobo Deng、Yun Liang、Yuan Yang
DOI:10.1021/acs.orglett.1c01888
日期:2021.8.6
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。