Tetrahedron Letters p. 2743 - 2746 (1986)
Update date:2022-08-02
Hartke, Klaus
Richter, Wolfgang
Massa, Werner
Baum, Gerhard
At room temperature the O-dicyanovinyl tropolones 3 and the O-(cyanoimino)alkyl tropolones 5 show a rapid degenerate O,O-migration of the dicyanovinyl and (cyanoimino)alkyl groups.By heating 3 and 5 in boiling toluene the Diels-Alder adducts 7 and 8 are f
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