Synthesis of γ-BromolactoneBased on 3-Cyclohexenecarboxylic Acid. -High-temperature bromination of 3-cyclohexenecarboxylic acid in polar solvents provides 4-bromo-γ-lactone (II) in high yield. -(GASHIMOV, G. A.; GEIBATOV, L. M.; AZIZOV, E. YA.; POLADOV, P. M.; Zh.
Chlorierungen der Titelverbindungen (I) und (IV) in polarem Medium liefern trans‐diaxiale Dichlorderivate (II) bzw. (V) (IR‐, 1H‐NMR‐Daten); neben den Dichloriden (V) bilden sich in teilweise beträchtlichen Mengen (Ausb. bis zu 80%) die Lactone (VIII) bzw. im Falle (c) das Lacton (IX).
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