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https://pubmed.ncbi.nlm.nih.gov/38095183
Scientists have successfully polymerized the Dewar isomer of 1,2-azaborinine, a B-N isostere of benzene, using Grubbs and Hoveya-Grubbs second generation catalysts, and a Z-selective Ru catalyst, resulting in the production of functional polymers with polar side groups containing 4-membered B-N heterocycles.