Photo-Induced Ruthenium-Catalyzed C-H Arylation Polymerization at Ambient Temperature

Angew Chem Int Ed Engl. 2024 Apr 18:e202400845. doi: 10.1002/anie.202400845. Online ahead of print.ABSTRACTTransition metal-catalyzed C-H arylation polymerization (CHAP) is an attractive tool for constructing π-conjugated polymers in a sustainable manner. However, the existing methods primarily rely on palladium catalysis, which usually entails harsh reaction conditions and branching/cross-linking. Here we report the first example of an ambient-temperature ruthenium-catalyzed C-H arylation polymerization induced by visible light irradiation. The present polymerization can produce various meta- and para-linked polymers in excellent yields with high molecular weights. The remarkable feature of our mild reaction platform is represented by high chemoselectivity, leading to polymers that are otherwise inaccessible under conventional reaction conditions at high temperatures.PMID:38634987 | DOI:10.1002/anie.202400845

Source: Angewandte Chemie - April 18, 2024 Category: Chemistry Authors: Takuya Michiyuki Isaac Maksso Lutz Ackermann Source Type: research