When a mixture containing 1‐halo‐1‐alkyne, a dinucleophilic agent, and a base (Cs2CO3 or K3PO4) was heated in DMF, regio‐ and stereo‐selective nucleophilic addition of the dinucleophilic agent to the acetylenes occurred. This reaction yielded (Z,Z)‐bis(haloalkene), which subsequently underwent Pd‐catalyzed cyclization through C–H bond activation, resulting in the formation of two‐oxygen‐ or ‐nitrogen‐containing
当混合物含有 1-halo-1-alkyne、双亲核试剂和碱(Cs2CO3 或 K3PO< sub>4)在
DMF中加热,发生二亲核试剂与
乙炔的区域和立体选择性亲核加成。该反应产生了 (Z,Z)-双(卤代烯烃),随后通过 Pd 催化环化C-H键活化,导致形成含双氧或双氮的杂π共轭化合物。 N-(5-羟基
萘-1-基)甲磺酰胺先用 2-苯基-1-
氯乙炔处理,然后用 1-
氯-
1-十六炔处理。经过这些反应,Pd催化的双C-H环化反应生成1H-2-苯基-7-
十四烷基苯并
呋喃[7,6-]
吲哚。值得注意的是,该化合物在 86 °C 时转变为扇形结构,并转变为以层状结构为特征的近晶 A 相。