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2005
Furan derivatives
R 0060
Novel Fragmentation Reaction of 2-Alkyl- and 2,4-Dialkyl-3-iodo-1-oxocyclohex— Treatment of 1-oxocyclohexan-2,4-carbolactones with
12- 112 an-2,4-carbolactones.
LiOH leads to butenolides of type (III) and/or γ-hydroxycyclohexenones depending on
the substituents, the solvent and the leaving group. In the presence of lithium alkoxides
γ-butyrolactones like (VII) are formed predominantly or exclusively. Starting from the
hydroxy carbolactones (IX) bislactones are obtained. — (KHIM*, S.-K.; DAI, M.;
ZHANG, X.; CHEN, L.; PETTUS, L.; THAKKAR, K.; SCHULTZ, A. G.; J. Org.
Chem. 69 (2004) 22, 7728-7733; Dep. Chem., Rensselaer Polytech. Inst., Troy,
NY 12180, USA; Eng.) — Jannicke
2005
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