Stereospecific synthesis of monofluoroalkenes and their deuterated analogues via Ag-catalyzed decarboxylation

•Stereospecific synthesis of alkenyl fluorides via Ag-catalyzed protodecarboxylation.•Facile preparation of versatile d-analogues with easily available heavy water.•DFT calculations provide key insights to understand the reactivity and selectivity.•Low-cost catalyst, broad functional group tolerance, and operational simplicity.•Enable novel bioisosterism study.