Research demonstrates the photochemistry and structural analysis of chiral keto[3,3]cyclophanes, indicating complex formation.
We have prepared racemates of two new chiral keto[3,3]paracyclophanes and one keto[3,3]metacyclophane by irradiation of the corresponding phenacyl benzoates tethered with a phenol moiety via conformational preorganization enabled by intramolecular charge transfer complex. Their structural properties have been analyzed by X‐ray crystallography. The photochemistry of the new cyclophanes has also been examined, in which the beta CO bond cleavage is the major reaction pathway.
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Shin et al. (2025) studied this question.
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