Abstract
3,4-Dimethylene-1,6-hexane diols2 obtained by allylboration of ketones with 2,3-dimethylene-1,4-bis(dipropylboryl)butane1 undergo cyclization on treatment with I2/NaHCO3 to give 1,5-cis-di(iodomethyl)-2,6-dioxabicyclo[3.3.0]octanes (4) and/or 3,8-dioxabicyclo[4.4.0]dec-1(6)-enes (5). 4,4,9,9-Tetramethyl-3,8-dioxacyclodeca-1,6-dione (9) was synthesized by ozonolysis of bicyclic compound5b. The structure of compound5e was confirmed by X-ray diffraction analysis.
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Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 7, pp. 1308–1314, July, 1995.
This study was financially supported by the Russian Foundation for Basic Research (Grant No. 94-03-18193) and the International Science Foundation (Grant No. M3Y000).
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Gurskii, M.E., Golovin, S.B., Dekaprilevich, M.O. et al. Synthesis of 2,6-dioxabicyclo[3.3.0]octanes and 3,8-dioxabicyclo[4.4.0]dec-1(6)-enes by electrophilic cyclization of 3,4-dimethylene-1,6-hexanediols. Russ Chem Bull 44, 1262–1268 (1995). https://doi.org/10.1007/BF00700900
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DOI: https://doi.org/10.1007/BF00700900