TY - JOUR A1 - Markó, István E. A1 - Schevenels, Florian T. T1 - Anionic cascade reactions. One-pot assembly of (Z)-chloro-exo-methylenetetrahydrofurans from β-hydroxyketones JF - Beilstein Journal of Organic Chemistry PY - 2013/// VL - 9 SP - 1319 EP - 1325 SN - 1860-5397 DO - 10.3762/bjoc.9.148 PB - Beilstein-Institut JA - Beilstein J. Org. Chem. UR - https://doi.org/10.3762/bjoc.9.148 KW - acetylene addition KW - dichloroethylene KW - dimerisation KW - dioxanes KW - tetrahydrofurans N2 - The assembly of (Z)-chloro-exo-methylenetetrahydrofurans by an original and connective anionic cascade sequence is reported. Base-catalysed condensation of β-hydroxyketones with 1,1-dichloroethylene generates, in moderate to good yields, the corresponding (Z)-chloro-exo-methylenetetrahydrofurans. Acidic treatment of this motif leads to several unexpected dimers, possessing unique structural features. ER -