Tetrahedron Letters p. 7923 - 7924 (1993)
Update date:2022-08-11
Topics:
Andriamiadanarivo, Rindra
Pujol, Bernard
Chantegrel, Bernard
Deshayes, Christian
Doutheau, Alain
When heated in refluxing benzene or toluene, α-diazo β-ketophosphonates 2, prepared in three steps from aldehydes or ketones, gave rise to functionalized cyclobutenones 4 or phenolic compounds 5.These products are formed by electrocyclisation respectively of a vinyl or dienylketene, resulting from a Wolff rearrangement.
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(1984)
