1058239-64-7Relevant academic research and scientific papers
Halolactonization of γ-acetylenic acids: systhesis of novel spiroisoindole halobutyrolactones
Rammah, Mohamed M.,Othman, Mohamed,Msaddek, Moncef,Rammah, Mohamed B.
experimental part, p. 1971 - 1981 (2009/04/06)
γ-Acetylenic carboxylic acids are cyclized to spirohalo butyrolactones, in the presence of NBS or NIS and K2CO3. The corresponding 5(E)-haloalkylidene-spirobutyrolactones were isolated in high yields, and this process constitutes an easy and efficient route to analogous structures of natural products of biological interest.
