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The structures of the entitled compounds, synthesized as mixtures up to four isomers, are determined by the means of  13 C NMR spectroscopy. Our previous assignment [2] of the syn/antiisomers of the monomethyl-substituted 2-(chloromethyl)-1,4-dioxaspiro[4.5]decanes are reversed. Wrong assignments made in literature [3, 4] are corrected.

zeitschrift für naturforschung b

Correction of Structure Determinations on Monomethyl-Substituted 2-(ChloromethyI)-1,4-dioxaspiro[4.5]decanes, 2-Methylene-1,4-dioxaspiro[4.5]decanes, 1-(1′-Cyclohexene-1′-yloxy)-2-propanes and rac-4,5,6,7-Tetrahydro-3-methyI-1-benzofurans