4‐Heteryl‐Vinyl‐Butenolides as Visible‐Light T‐Type Photoswitches Quantified by Light‐Emitting Diode Nuclear Magnetic Resonance Spectroscopy
We introduce 4‐heteryl‐vinyl‐butenolides as a new and readily accessible family of T‐type molecular photoswitches that combine visible‐light addressability with high photostationary‐state (PSS) selectivity and tunable thermal stability of the metastable isomer. A series of derivatives was synthesized and evaluated by...