Browsing by Subject "Metal-complex"

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    Template-directed selective photodimerization reactions of 5-arylpenta-2,4-dienoic acids
    (American Chemical Society, 2024-07-10) Munir, Badar; Yağcı, Bilge Banu; Zorlu, Yunus; Türkmen, Yunus Emre
    We developed an efficient method that enables selective photodimerization of 5-arylpenta-2,4-dienoic acids (i.e., vinylogous cinnamic acids). The use of 1,8-dihydroxynaphthalene as a template ensures proximity of the two reacting olefins so that irradiation of template-bound dienoic acids gives mono [2 + 2] cycloaddition products in good to excellent yields (up to 99%), as single regioisomers, and with high diastereoselectivities (dr = 3:1 to 13:1). The geometrical and stereochemical features of compounds 12a, 16a, and 22a were analyzed by X-ray crystallography.