Английская Википедия:Isobenzofuran
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Isobenzofuran is a bicyclic heterocycle consisting of fused cyclohexa-1,3-diene and furan rings. It is isomeric with benzofuran.
Isobenzofuran is highly reactive and rapidly polymerizes; however, it has been identified[1] and prepared by thermolysis of suitable precursors and trapped at low temperature.[2]
Though isobenzofuran itself is not stable, it is the parent of related stable compounds with more complex structures, [3] such as the hindered analogue 1,3-diphenylisobenzofuran.
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