Collect. Czech. Chem. Commun. 1986, 51, 930-936
https://doi.org/10.1135/cccc19860930

Participation of the oxygen-containing substituent in alkaline saponification of 3,4a-disubstituted 4,4-dimethyl-5,6β-epoxy-A-homo-5β-cholestane derivatives

Helena Velgová

Institute of Organic Chemistry and Biochemistry, Czechoslovak Academy of Sciences, 166 10 Prague 6

Individual author index pages


Other CCCC articles of these authors

  • Ladislav Kohout, Helena Velgová, Miroslav Strnad and Miroslav Kamínek
    Brassino steroids with androstane and pregnane skeleton
    1987, Vol. 52, Issue 2, pp. 476–486 [Abstract]
  • Helena Velgová and Jaroslav Zajíček
    Reaction of 3,4a-disubstituted 4,4-dimethyl-5,6β-epoxy-A-homo-5β-cholestane derivatives with reducing agents
    1985, Vol. 50, Issue 11, pp. 2457–2470 [Abstract]
  • Helena Velgová and Ladislav Kohout
    6,7-Secoandrostane derivatives
    1985, Vol. 50, Issue 4, pp. 962–972 [Abstract]
  • Helena Velgová and Jaroslav Zajíček
    Oxidation and epoxidation of 4,4-dimethyl-A-homo-5-cholesten-4a-ols
    1985, Vol. 50, Issue 1, pp. 114–131 [Abstract]
  • Helena Velgová
    4,4-Dimethyl-A-homoandrostane epoxides
    1984, Vol. 49, Issue 1, pp. 150–156 [Abstract]
  • Helena Velgová
    4,4-Dimethyl-A-homoandrostane epoxides
    1983, Vol. 48, Issue 9, pp. 2536–2548 [Abstract]
  • Helena Velgová
    Stereochemistry of epoxidation and hydroboration of some 4,4-dimethyl-A-homo-5-cholestene derivatives
    1983, Vol. 48, Issue 6, pp. 1774–1782 [Abstract]
  • Helena Velgová and Antonín Trka
    Hydrogenolytic opening of 4,4-dimethyl-4a,5-epoxy-a-homocholestane derivatives and mass spectra of some reaction products
    1983, Vol. 48, Issue 3, pp. 937–955 [Abstract]
  • Ladislav Kohout, Alexander Kasal, Vlastimil Šanda and Helena Velgová
    Rearrangement of the 16,17-cyclopropano derivatives
    1983, Vol. 48, Issue 1, pp. 173–183 [Abstract]
  • Antonín Trka and Helena Velgová
    Mass spectra of 4,4-dimethyl-A-homocholestane-3,5- and 3,4a diols and their derivatives
    1982, Vol. 47, Issue 12, pp. 3328–3338 [Abstract]
  • Antonín Trka and Helena Velgová
    Mass spectra of 4,4-dimethyl-A-homo-4a,6-cholestadien-3-ols, 4,4-dimethyl-A-homo-5-cholestene-3,4a-diols and their derivatives
    1982, Vol. 47, Issue 10, pp. 2768–2778 [Abstract]
  • Helena Velgová
    Acid catalysed opening of 4,4-dimethyl-4a,5-epoxy-A-homocholestane derivatives
    1982, Vol. 47, Issue 9, pp. 2530–2539 [Abstract]
  • Helena Velgová, Jorga Smolíková, Antonín Trka and Antonín Vítek
    Cyclopropyl→cyclobutyl rearrangement in intramolecular cyclization of 3,5-bridged B-secoandrostane-6,7(or 5,7)-diols and mass spectra of products
    1982, Vol. 47, Issue 8, pp. 2280–2290 [Abstract]
  • Helena Velgová and Antonín Trka
    Reaction of lithium aluminium hydride with 4,4-dimethyl-4a,5-epoxy-A-homocholestane derivatives and mass spectral fragmentation of some degradation products
    1982, Vol. 47, Issue 7, pp. 2007–2023 [Abstract]
  • Helena Velgová and Antonín Trka
    Epoxidation of 4,4-dimethyl-A-homo-4a-cholestene derivatives and a study of electron impact mass spectra of the epoxidation products
    1982, Vol. 47, Issue 1, pp. 315–337 [Abstract]
  • Helena Velgová and Jorga Smolíková
    4,4-Dimethyl-A-homocholestane derivatives
    1981, Vol. 46, Issue 3, pp. 607–625 [Abstract]
  • Helena Velgová, Miroslava Synáčková and Václav Černý
    Preparation of some 3α,5-cycloandrostane derivatives with expanded ring B
    1979, Vol. 44, Issue 1, pp. 260–268 [Abstract]
  • Helena Velgová, Dietrich Zeigan, Günther Engelhardt and Antonín Trka
    Cyclization of 17-ethylenedioxy-3α,5-cyclo-6,7-seco-5α-androstane-6,7-diol
    1979, Vol. 44, Issue 1, pp. 128–144 [Abstract]