
Tetrahedron Letters p. 3643 - 3646 (1998)
Update date:2022-07-30
Topics:
Heileman, Matthew J.
Moore, Harold W.
Several new differentially substituted cyclobutenediones 4a-e have been prepared. Their thermal rearrangement to substituted naphthofuranones 5a-d is reported. This rearrangement involves an unprecedented intramolecular cyclization of a reactive bisketene 6, and forms the naphthofuranone system in good yield.
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