Several biaryls bearing various substituents on both rings were synthesized in a preparative fashion, and in yields up to 88% by a technical improvement on the classical Ullmann reaction. All these biaryls bear reactive functional groups (i.e. formyl, methoxycarbonyl, dimethoxycarbonylpropyl and butanolidylmethyl) in both the o and o′ positions. The biaryls 9, 13, 21 and 26–33 are plausible synthons
以制备方式合成了在两个环上带有多个取代基的几种联芳基,通过对经典乌尔曼反应的技术改进,产率高达88%。所有这些联芳基在o和o ′位置均带有反应性官能团(即甲酰基,甲氧基羰基,二甲氧基羰基丙基和
丁烯丙基甲基)。的联芳基化合物9,13,21和26-33是用于bisbenzocyclooctadiene
木脂素如
五味子素和steganacin可信合成子。