Reductive Ring‐Opening Reaction of 2,3‐Epoxy‐1,4‐butanediones with SbCl3‐Bu4NI in the Presence of Na2S2O3·5H2O
摘要:
1,4-Disubstituted 2,3 -epoxy-1,4-butanediones were converted to 1,4-disubstituted 2-hydroxy-1,4-butanediones with SbCl3-Bu4NI in the presence of Na(2)S(2)O(3)center dot 5H(2)O. The ring opening of terminal epoxides can also be accomplished to afford the corresponding haloalcohol with SbCl3 and tetrabutylammonium halides, Bu4NX (X = Cl, Br, I) under the same reaction conditions.