Abstract 1,6‐Dioxapyrene, the first unsubstituted dioxa‐analogue of pyrene was synthesized in good yield from 2‐carbomethoxy‐6‐methoxynaphtho[1,8‐bc]pyran in a four‐step reaction involving a peri‐heterocyclisation. Its 1H nmr spectral characteristics were compared with those of native pyrene.
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Buisson et al. (1990) studied this question.
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