The application of a low-valent titanium reagent recently developed in our group, Ti(O-i-Pr)₄/Me₃SiCl/Mg, to the McMurry coupling polymerization of aryl dialdehyde monomers and [2 + 2 + 2] cycloaddition polymerization of aromatic diyne monomers is described. Furthermore, on the basis of these reactions, a low-valent titanium-mediated dual-mode coupling copolymerization of aryl dialdehyde and alkynylaldehyde monomers via concurrent McMurry olefination and alkyne cyclotrimerization reactions is proposed.

中文翻译：

---

低价钛试剂介导的并发McMurry烯烃和炔烃[2 + 2 + 2]环加成三聚反应的芳基二醛和炔醛单体的双模偶联共聚

最近在我们小组中开发的低价钛试剂Ti（O- i- Pr）₄ / Me ₃ SiCl / Mg在芳基二醛单体的McMurry偶联聚合和[2 + 2 + 2]环加成聚合中的应用描述了芳族二炔单体的混合物。此外，基于这些反应，提出了通过同时的McMurry烯化和炔烃环三聚反应的芳基二醛和炔醛单体的低价钛介导的双模式偶联共聚。