Abstract
Argon ion laser irradiation of CCl 4 solutions of 1,4-dioxene and benzophenone or p-benzoquinone under oxygen pressure affords the 1,2,4-trioxanes 4a,b ( cis ring junction by NOE 1H-NMR differential spectroscopy), resulting from trapping of the corresponding triplet preoxetane diradicals.
Published Version
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