C-bifunctional sila- and germacyclopentanes have some potential as biologically active drugs. Ten representative 1-sila (and 1-germa) cyclopentane-2,3 and 3,4-diols, cis or trans, were synthesized from the corresponding 1-metallacyclopen-3-enes. The influence of the metal, silicon or germanium, on each step leading to 3 sets of alpha-diols is underlined. The stereochemistry of the alpha-diols and their precursors was established by H-1 and C-13 NMR spectroscopy.
XABIBULLINA L. I.; GUMEROVA V. S.; KOMALENKOVA N. G.; YUREV V. P., IZV. AN CCCP CEP. XIM. 1979, HO 6 1416
作者:XABIBULLINA L. I.、 GUMEROVA V. S.、 KOMALENKOVA N. G.、 YUREV V. P.
DOI:——
日期:——
Diels−Alder Chemistry of Siloles and Their Transformation into Cyclohex-2-ene-1,4-<i>cis</i>-diols
作者:Andrew C. Stevens、Brian L. Pagenkopf
DOI:10.1021/ol101453e
日期:2010.8.20
The synthesis of siloles with substitution patterns that are continuative toward natural product synthesis are described. Their reactivity in Diels−Alder chemistry was explored through thermal, Lewis acid, and high-pressure reactions. Furthermore, bicyclic adducts were oxidatively cleaved to reveal a highly functionalized cyclohexene core.
C-bifunctional sila- and germacyclopentanes have some potential as biologically active drugs. Ten representative 1-sila (and 1-germa) cyclopentane-2,3 and 3,4-diols, cis or trans, were synthesized from the corresponding 1-metallacyclopen-3-enes. The influence of the metal, silicon or germanium, on each step leading to 3 sets of alpha-diols is underlined. The stereochemistry of the alpha-diols and their precursors was established by H-1 and C-13 NMR spectroscopy.