Base-Mediated Scalable Synthesis of Polybenzothiazoles: Fused-Heterocycle-Engineered Recovery of Precious Metals.

ABSTRACT: Sulfur-containing fused heterocyclic polybenzothiazoles are promising materials with advanced functionalities, yet their synthesis has long been constrained by substrate limitations and scalability challenges. Here, a base-mediated multicomponent polymerization strategy using readily available elemental sulfur, aromatic diamines, and aromatic dialdehydes is developed to synthesize unprecedented polybenzothiazoles with scalability. By efficient alkaline activation of substrates through nucleophilic sulfurization-cyclization cascades, this method enables economically viable kilogram-scale production in a one-pot process with high yields (73-98%) and monomer universality, including previously incompatible electron-deficient aromatic amines. The resulting polybenzothiazoles unlock their long-o

SUBMITTER: Zhou H 

PROVIDER: S-EPMC12462968 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature