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Chiroptical molecular switches play an important role in responsive materials and dynamic molecular systems. Here we present the synthesis of four chiral overcrowded alkenes and the experimental and computational study of their photochemical and thermal behavior. By irradiation with UV light, metastable diastereoisomers with opposite helicity were generated through high yielding E–Z isomerizations...
Bistable Switches Four overcrowded alkenes have been synthesized and investigated experimentally and computationally. Irradiation with UV light allowed high‐yielding E–Z isomerizations providing metastable diastereoisomers. Kinetic studies on metastable 1–4 using CD and HPLC identified two pathways at high temperatures for thermal isomerization. To show the value of these overcrowded alkenes as bistable...
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