Collection of Czechoslovak Chemical Communications - digital archive 

Individual author index pages

• Helena Velgová

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
  Participation of the oxygen-containing substituent in alkaline saponification of 3,4a-disubstituted 4,4-dimethyl-5,6β-epoxy-A-homo-5β-cholestane derivatives
  1986, Vol. 51, Issue 4, pp. 930–936 [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
  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]