210424-50-3Relevant academic research and scientific papers
Generation and intramolecular cyclization of (2- ethenylphenyl)bisketenes. Synthesis of benzofuranones
Heileman, Matthew J.,Moore, Harold W.
, p. 3643 - 3646 (2007/10/03)
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.
