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Fluorophosphonates on‐Demand: A General and Simplified Approach toward Fluorophosphonate Synthesis

Herein, we report a general and simplified synthesis of fluorophosphonates directly from p‐nitrophenylphosphonates. This FP on‐demand reaction is mediated by a commercially available polymer‐supported fluoride reagent that produces a variety (25 examples) of fluorophosphonates in high yields while only requiring reagent filtration for pure fluorophosphonate isolation. This reaction protocol facilitates the rapid profiling of serine hydrolases with diverse and novel sets of activated phosphonates with differential proteome reactivity. Moreover, slight modification of the procedure into a reaction‐to‐assay format has enabled additional screening efficiency.