Synthetic Studies toward Polytwistane Hydrocarbon Nanorods

A synthetic strategy toward the intriguing
hydrocarbon nanorod
polytwistane is outlined. Our approach aims toward the polymerization
of acetylene starting from precursors that would provide a helical
bias for the formation of polytwistane. Both transition-metal-catalyzed
and radical polymerizations were investigated. Two potential initiator
molecules were synthesized that could be used for either approach.
Although the intended regioselectivities were not observed, unusual
organopalladium complexes and numerous compounds with novel carbon
skeletons were obtained.

本文概述了一种可用于制备引人关注的烃纳米棒型聚扭烷（polytwistane）的合成策略。本研究旨在以能够为聚扭烷的形成提供螺旋偏向性的前驱体为起始原料，实现乙炔的聚合反应。我们对过渡金属催化聚合与自由基聚合两种路径均展开了探索，并合成了两种可适用于上述任一聚合路径的潜在引发剂分子。尽管未获得预期的区域选择性产物，但我们分离得到了非常规的有机钯配合物以及多种具有新型碳骨架的化合物。