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Updated: Feb 16, 2026
Facile Preparation of 2Z,4E-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate
Published on: June 21, 2017
Reversible addition of terminal alkenes to digermynes
Tomohiro Sugahara1, Jing-Dong Guo, Takahiro Sasamori
1Institute for Chemical Research, Kyoto University, Gokasho Uji, Kyoto 611-0011, Japan.
Abstract:
Stable digermynes with sterically demanding Bbt (Bbt = 2,6-[CH(SiMe3)2]2-4-[C(SiMe3)3]-C6H2) or Tbb (Tbb = 4-tBu-2,6-[CH(SiMe3)2]2-C6H2) groups underwent [2+2] cycloadditions with terminal alkenes to give the corresponding 1,2-digermacyclobutenes. In the case of the Bbt-substituted digermyne, the reaction was reversible at room temperature, i.e., the 1,2-digermacyclobutene (Ge(ii) species) is susceptible to a facile reductive elimination that affords the corresponding digermyne (Ge(i) species) and the alkene.
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