End-Functionalized Polymerization of 2-Vinylpyridine through Initial C–H Bond Activation of N-Heteroaromatics and Internal Alkynes by Yttrium Ene–Diamido Complexes

We successfully introduced end-capping functional groups to poly(2-vinylpyridine)s by initial introduction of the functional groups on yttrium catalysts through C–H bond activation of heteroaromatics and internal alkynes to the Y center via alkylyttrium-mediated σ-bond metathesis.我们通过炔基钇介导的σ键复分解路径，先利用杂芳烃与内炔烃的C-H键活化将官能团锚定至钇催化剂活性中心，随后成功将封端官能团接枝至聚(2-乙烯基吡啶)分子链中。