62692-61-9Relevant articles and documents
ISOMERIZATION OF β-KETO-ALLENES
-
Page/Page column 8-10, (2011/11/06)
Isomerization of β-keto-allenes of the general formula I wherein R1 is hydrogen, methyl or ethyl, in particular hydrogen or methyl; R2 is hydrogen or methyl; R3 is hydrogen or methyl, in particular methyl and R4 is an aliphatic hydrocarbon residue containing 1 - 37 carbon atoms, into corresponding α,γ-dienones of formula II by treatment with a basic ion exchange resin.