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Unusual temperature dependence in the cis/trans-oxetane formation discloses competitive syn versus anti attack for the Paternò-Büchi reaction of triplet-excited ketones with cis- and trans-cylooctenes. Conformational control of diastereoselectivity in the cyclization and cleavage of preoxetane diradicals.
Adam W, Stegmann VR. Adam W, et al. Among authors: stegmann vr. J Am Chem Soc. 2002 Apr 10;124(14):3600-7. doi: 10.1021/ja017017h. J Am Chem Soc. 2002. PMID: 11929249