Collect. Czech. Chem. Commun. 1967, 32, 3726-3732
https://doi.org/10.1135/cccc19673726

On steroids. CVII. Synthesis of epimeric 3-bromo-4-ketones and 3,4-epoxides in the 5β-cholestane series

V. Šanda and J. Fajkoš

Individual author index pages


Other CCCC articles of these authors

  • V. Šanda, J. Fajkoš and J. Protiva
    Microbial oxygenation of B-norsteroids with Beauveria bassiana
    1977, Vol. 42, Issue 12, pp. 3646–3653 [Abstract]
  • J. Joska and J. Fajkoš
    4,5-Cyclo-A-homo-B-norsteroid androgen analogues
    1977, Vol. 42, Issue 3, pp. 1044–1052 [Abstract]
  • J. Joska and J. Fajkoš
    Synthesis of 2-oxygenated 4,5-cyclo-A-homo-B-norcholestane derivatives
    1977, Vol. 42, Issue 3, pp. 1035–1043 [Abstract]
  • J. Fajkoš and J. Joska
    19-Hydroxy steroids substituted in position 7
    1976, Vol. 41, Issue 3, pp. 923–927 [Abstract]
  • L. Kohout and J. Fajkoš
    Synthesis of 6β,7aβ-cyclo-B-homo-5α-cholest-2-ene
    1975, Vol. 40, Issue 12, pp. 3924–3931 [Abstract]
  • Pavel Kočovský, L. Kohout and J. Fajkoš
    5,7-Cyclo-B-homopregnane derivatives with an oxygen function in position 17α
    1975, Vol. 40, Issue 2, pp. 468–474 [Abstract]
  • J. Joska, J. Fajkoš and M. Buděšínský
    Synthesis of 4,5-cyclo-A-homo-B-norcholestane derivatives
    1974, Vol. 39, Issue 7, pp. 1914–1924 [Abstract]
  • A. Mironowicz, L. Kohout and J. Fajkoš
    5,7-Cyclo-B-homopregnane derivatives with an oxygen function in position 21
    1974, Vol. 39, Issue 7, pp. 1780–1786 [Abstract]
  • J. Fajkoš and J. Joska
    5,7-Cyclosteroids with an oxygen function in position 1
    1974, Vol. 39, Issue 7, pp. 1773–1779 [Abstract]
  • L. Kohout and J. Fajkoš
    Synthesis and some reactions of the epimeric 5,7α-cyclo-B-homo-5α-cholestan-4-ols
    1974, Vol. 39, Issue 6, pp. 1613–1620 [Abstract]
  • L. Kohout and J. Fajkoš
    Acetolyses of the epimeric 4-methanesulphonyloxy-5,7β-cyclo-B-homo-5β-cholestanes
    1974, Vol. 39, Issue 6, pp. 1601–1612 [Abstract]
  • V. Šanda, J. Fajkoš and F. Šorm
    Synthesis of B-norcortisol
    1974, Vol. 39, Issue 5, pp. 1377–1381 [Abstract]
  • J. Joska, J. Fajkoš and F. Šorm
    On steroids. CLVI. 6-Methylanalogues of B-norsteroids
    1973, Vol. 38, Issue 7, pp. 2121–2131 [Abstract]
  • L. Kohout and J. Fajkoš
    On steroids. CLIV. B-Homosteroids. IX. The epimeric 5,7-cyclo-B-homoandrostane derivatives
    1973, Vol. 38, Issue 5, pp. 1415–1427 [Abstract]
  • J. Fajkoš, M. Buděšínský and J. Joska
    On steroids. CLIII. 5,7-Cyclosteroids. VII. The epimeric 1,2-epoxides of the 5,7β-cyclosteroid series
    1973, Vol. 38, Issue 5, pp. 1406–1414 [Abstract]
  • J. Joska, Ž. Procházka, J. Fajkoš and F. Šorm
    On steroids. CLII. Microbial oxygenation of B-norsteroids
    1973, Vol. 38, Issue 5, pp. 1398–1405 [Abstract]
  • L. Kohout and J. Fajkoš
    On steroids. CLI. B-Homosteroids. VIII. Solvolytic reactions of the epimeric 3-methanesulphonyloxy-5,7-cyclo-B-homosteroids
    1973, Vol. 38, Issue 3, pp. 913–928 [Abstract]
  • A. Kurek, L. Kohout, J. Fajkoš and F. Šorm
    On steroids. CL. Bromo and cyano derivatives of 5α-cholestan-3β-ol
    1973, Vol. 38, Issue 2, pp. 583–591 [Abstract]
  • A. Kurek, L. Kohout, J. Fajkoš and F. Šorm
    On steroids. CXLVI. B-Homosteroids. VII. Favorskii rearrangement of some B-homosteroid bromo ketones
    1973, Vol. 38, Issue 1, pp. 279–288 [Abstract]
  • J. Joska, J. Fajkoš and F. Šorm
    On steroids. CXLV. Some analogues of B-normethyltestosterone
    1973, Vol. 38, Issue 1, pp. 270–278 [Abstract]
  • J. Joska, J. Fajkoš and F. Šorm
    On steroids. CXLIV. 6-Hydroxylated B-norcholestane derivatives
    1972, Vol. 37, Issue 12, pp. 4091–4098 [Abstract]
  • L. Kohout and J. Fajkoš
    On steroids. CXLIII. B-Homosteroids. VI. Simmons-Smith methylenation of Δ5-steroids
    1972, Vol. 37, Issue 10, pp. 3490–3500 [Abstract]
  • J. Fajkoš and J. Joska
    On steroids. CXLII. 5,7-Cyclosteroids. VI. Acetolysis of 4α-methanesulphonyloxy-5,7,β-cyclo-5β-cholestane
    1972, Vol. 37, Issue 10, pp. 3483–3489 [Abstract]
  • V. Šanda, J. Fajkoš, F. Šorm and J. Protiva
    On steroids. CXXXX. B-Norsteroid analogues of corticoids
    1972, Vol. 37, Issue 8, pp. 2807–2811 [Abstract]
  • V. Šanda, J. Fajkoš and F. Šorm
    On steroids. CXXXI. The preparation of 11-hydroxy-B-norprogesterones
    1970, Vol. 35, Issue 11, pp. 3445–3451 [Abstract]
  • L. Kohout and J. Fajkoš
    On steroids. CXXV. B-Homosteroids. IV. Conformation of the B-ring in B-homosteroid ketones and α-bromoketones
    1969, Vol. 34, Issue 8, pp. 2439–2448 [Abstract]
  • J. Joska, J. Fajkoš and F. Šorm
    On steroids. CXXIV. 5,7-Cyclosteroids. V. Synthesis of 5,7β-cyclo-5β-pregnane derivatives
    1969, Vol. 34, Issue 8, pp. 2429–2438 [Abstract]
  • L. Kohout, J. Fajkoš and F. Šorm
    On steroids. CXXIII. B-Homosteroids. III. Conformation of the B-ring in B-homosteroid bromohydrins
    1969, Vol. 34, Issue 7, pp. 1954–1962 [Abstract]
  • V. Šanda, J. Fajkoš and F. Šorm
    On steroids. CXXII. Synthesis of B-norestrone
    1969, Vol. 34, Issue 2, pp. 681–685 [Abstract]
  • L. Kohout, J. Fajkoš and F. Šorm
    On steroids. CXXI. B-Homosteroids. II. Conformation of the B-ring in B-homosteroid alcohols and epoxides
    1969, Vol. 34, Issue 2, pp. 601–617 [Abstract]
  • J. Fajkoš, J. Joska and F. Šorm
    On steroids. CXVIII. 5,7-Cyclosteroids. IV. Synthesis of 2,3-disubstituted 5β,7β-cyclosteroids
    1968, Vol. 33, Issue 10, pp. 3356–3365 [Abstract]
  • J. Joska, J. Fajkoš and F. Šorm
    On steroids. CXVII. 5,7-Cyclosteroids. III. 5,7-Cyclosteroid androgen analogues
    1968, Vol. 33, Issue 10, pp. 3342–3355 [Abstract]
  • J. Fajkoš, J. Joska and F. Šorm
    On steroids. CXVI. 5,7-Cyclosteroids. II. Solvolytic reactions of the epimeric 3-methanesulphonyloxy-5,7-cyclosteroids
    1968, Vol. 33, Issue 10, pp. 3324–3341 [Abstract]
  • J. Joska, J. Fajkoš and F. Šorm
    On steroids. CXII. 5,7-Cyclosteroids. I. The Simmons-Smith methylenation of Δ5-B-norsteroids
    1968, Vol. 33, Issue 7, pp. 2049–2058 [Abstract]
  • J. Joska and J. Fajkoš
    On steroids. CX. Synthesis of B-nor-epi-cholesterol
    1967, Vol. 32, Issue 11, pp. 3941–3952 [Abstract]
  • J. Fajkoš, J. Joska and F. Šorm
    On steroids. CV. Bromination of some B-norsteroid-6-ketones
    1967, Vol. 32, Issue 7, pp. 2605–2617 [Abstract]
  • L. Kohout, J. Fajkoš and F. Šorm
    On steroids. CIV. 6,7-Substituted B-homosteroids; Stereochemistry and proof of configuration
    1967, Vol. 32, Issue 3, pp. 1210–1228 [Abstract]
  • J. Fajkoš, J. Joska and F. Šorm
    On steroids. CII. Fission of 4β,5β-epoxides of the B-norsteroid series
    1966, Vol. 31, Issue 12, pp. 4610–4621 [Abstract]
  • J. Joska, J. Fajkoš and F. Šorm
    On steroids. C. The B-norsteroid hydroxy ketones and their ORD-curves
    1966, Vol. 31, Issue 7, pp. 2745–2758 [Abstract]
  • J. Joska, J. Fajkoš and F. Šorm
    On steroids. XCV. 4,5-Epoxides in the B-norsteroid series
    1966, Vol. 31, Issue 1, pp. 298–309 [Abstract]
  • V. Šanda and J. Fajkoš
    On steroids. XCIV. Synthesis of 3,4-bromoketones and bromohydrins in the 5β-B-norsteroid series
    1965, Vol. 30, Issue 9, pp. 2973–2983 [Abstract]
  • J. Fajkoš, J. Joska and F. Šorm
    On steroids. XCIII. Hypobromous acid addition to 4,5-unsaturated B-norsteroids
    1965, Vol. 30, Issue 8, pp. 2615–2625 [Abstract]
  • J. Fajkoš, J. Joska and F. Šorm
    On steroids. LXXXV. Stereochemistry of the 6-keto-B-norsteroids
    1964, Vol. 29, Issue 3, pp. 652–671 [Abstract]
  • J. Piťha, J. Joska and J. Fajkoš
    On steroids. LXXXIII. An unusual case of intermolecular hydrogen bonding in a B-norsteroid 3,6-diol
    1963, Vol. 28, Issue 10, pp. 2611–2617 [Abstract]
  • J. Joska and J. Fajkoš
    On steroids. LXXXII. Fission of the 5β,6β-epoxides in the B-norsteroid series
    1963, Vol. 28, Issue 10, pp. 2605–2610 [Abstract]
  • J. Fajkoš, J. Joska, J. Piťha and F. Šorm
    On steroids. LXXX. Intramolecular hydrogen bonding in 3,6-disubstituted 5β-B-norsteroids: Conformation of ring A
    1963, Vol. 28, Issue 9, pp. 2337–2344 [Abstract]
  • J. Joska and J. Fajkoš
    On steroids. LXXV. 5β,6β-epoxides in the B-norsteroid series
    1963, Vol. 28, Issue 3, pp. 621–628 [Abstract]
  • J. Fajkoš, J. Joska and F. Šorm
    On steroids. LXXIV. Conformation of ring A in 6-substituted 3-keto-5β-B-norsteroids
    1963, Vol. 28, Issue 3, pp. 605–620 [Abstract]
  • J. Joska, J. Fajkoš and F. Šorm
    On steroids. LXXII. Fission of the 5α,6α-epoxyderivatives in the B-norsteroid series
    1963, Vol. 28, Issue 1, pp. 82–100 [Abstract]
  • J. Fajkoš, J. Joska and F. Šorm
    On steroids. LXVIII. Synthesis of the epimeric 15,16-epoxides in the androstane series
    1962, Vol. 27, Issue 8, pp. 1856–1860 [Abstract]
  • J. Fajkoš and J. Joska
    On steroids. LXVII. 16-Bromoderivatives in the 5β-B-norandrostane series
    1962, Vol. 27, Issue 8, pp. 1849–1855 [Abstract]
  • V. Šanda, N. Constantzas and Ž. Procházka
    On the bound form of ascorbic acid. XVI. Effect of pH on ascorbigen
    1962, Vol. 27, Issue 3, pp. 554–558 [Abstract]
  • J. Fajkoš and V. Šanda
    On steroids. LXVI. 16-Bromoderivatives in the 5β-androstane series
    1962, Vol. 27, Issue 2, pp. 355–361 [Abstract]
  • J. Fajkoš, J. Joska and F. Šorm
    On steroids. LXIV. The epimeric 15-bromo-16-ketones in the androstane series
    1962, Vol. 27, Issue 1, pp. 64–72 [Abstract]
  • V. Šanda and J. Fajkoš
    On steroids. LXIII. Some analogues of androgens substituted in position 16
    1961, Vol. 26, Issue 11, pp. 2734–2738 [Abstract]
  • Ž. Procházka, J. Fajkoš, J. Joska and F. Šorm
    On steroids. LX. Microbial oxygenation of B-norsteroids
    1961, Vol. 26, Issue 8, pp. 2068–2071 [Abstract]
  • J. Joska, A. A. Achrem, J. Fajkoš and F. Šorm
    On steroids. LXI. Some B-norsteroid hormone analogues
    1961, Vol. 26, Issue 8, pp. 2050–2057 [Abstract]
  • J. Joska, J. Fajkoš and F. Šorm
    On steroids. LVIII. Some analogues of androgens substituted in position 7
    1961, Vol. 26, Issue 6, pp. 1646–1657 [Abstract]
  • J. Fajkoš and J. Joska
    On steroids. LVII. Infrared spectra of the epimeric 16-bromo-17-ketones and alcohols of the androstane series: Conformation of the D-ring
    1961, Vol. 26, Issue 4, pp. 1118–1136 [Abstract]
  • J. Fajkoš and J. Joska
    On steroids. LV. Bromination of 3β-acetoxy-5α-androstan-16-one
    1960, Vol. 25, Issue 11, pp. 2863–2877 [Abstract]
  • J. Joska, J. Fajkoš and F. Šorm
    On steroids. LI. Derivatives of 5α- and 5β-B-norandrostane
    1960, Vol. 25, Issue 9, pp. 2341–2357 [Abstract]
  • I. Malunowicz, J. Fajkoš and F. Šorm
    On steroids. XLI. Epimeric 2-bromo and 4-bromo derivatives of cholestan-3-one
    1960, Vol. 25, Issue 5, pp. 1359–1370 [Abstract]
  • J. Joska, J. Fajkoš and F. Šorm
    On steroids. L. Analogues of androgens with the B-norsteroid skeleton
    1960, Vol. 25, Issue 4, pp. 1086–1090 [Abstract]
  • J. Fajkoš
    On steroids. XXXVI. Catalytic hydrogenation of steroidal enol acetates; A new synthesis of testosterone and oestradiol
    1960, Vol. 25, Issue 4, pp. 1078–1085 [Abstract]
  • Ž. Procházka and V. Šanda
    On the bound form of ascorbic acid. XII. Isolation of pure ascorbigen and some other indole derivatives from Savoy cabbage
    1960, Vol. 25, Issue 1, pp. 270–280 [Abstract]
  • Ž. Procházka, V. Šanda and L. Jirousek
    Isothiocyanate im Wirsing- und Rosenkohl
    1959, Vol. 24, Issue 11, pp. 3606–3610 [Abstract]
  • J. Fajkoš and F. Šorm
    On steroids. XXXIX. Epimeric 2- and 4-bromo derivatives of androstan-3-one
    1959, Vol. 24, Issue 9, pp. 3115–3135 [Abstract]
  • Ž. Procházka, V. Šanda and K. Macek
    Über die Papierchromatographie der Indolderivate
    1959, Vol. 24, Issue 9, pp. 2928–2938 [Abstract]
  • J. Fajkoš
    On steroids. XL. Reduction of steroidal ketones with lithium tri-tert.-butoxyaluminohydride
    1959, Vol. 24, Issue 7, pp. 2284–2290 [Abstract]
  • M. Horák and J. Fajkoš
    Über Steroide XLII. Über die Infrarotspektren und die Nah-konstellation der Steroiden Bromhydrine
    1959, Vol. 24, Issue 5, pp. 1515–1519 [Abstract]
  • J. Fajkoš and F. Šorm
    On steroids. XXXV. The synthesis of epimeric 16-bromo derivatives of androsterone and testosterone
    1959, Vol. 24, Issue 3, pp. 766–785 [Abstract]
  • V. Šanda, Ž. Procházka and H. Le Moal
    Relations entre la structure chimique et les valeurs RF dans la série des acides dicarboxyliques
    1959, Vol. 24, Issue 2, pp. 420–427 [Abstract]
  • J. Fajkoš
    On steroids. XXXII. Synthesis and reactions of Δ15 derivatives of androstane
    1958, Vol. 23, Issue 12, pp. 2155–2168 [Abstract]
  • J. Fajkoš
    On steroids. XXXI. Synthesis of 3β-hydroxyandrost-15-en-17-one
    1958, Vol. 23, Issue 8, pp. 1559–1569 [Abstract]
  • J. Fajkoš and F. Šorm
    On steroids. XXVIII. Synthesis of analogues of progesterone and desoxycorticosterone with the side-chain in position 16
    1957, Vol. 22, Issue 6, pp. 1873–1886 [Abstract]
  • Ž. Procházka, V. Šanda and F. Šorm
    On the structure of ascorbigen
    1957, Vol. 22, Issue 2, pp. 654–656 [Abstract]
  • Ž. Procházka, V. Šanda and F. Šorm
    Die Isolierung von reinem Ascorbigen
    1957, Vol. 22, Issue 1, pp. 333–335 [Abstract]
  • J. Fajkoš and F. Šorm
    On steroids. XXIII. Synthesis and configuration of the two stereoisomeric 16-acetylandrostan-3β-ols
    1956, Vol. 21, Issue 4, pp. 1013–1022 [Abstract]
  • J. Fajkoš
    On steroids. XVIII. Fission of 16,17-epoxy derivatives of androstane
    1955, Vol. 20, Issue 6, pp. 1478–1483 [Abstract]
  • J. Fajkoš and F. Šorm
    On steroids. XVI. Preparation of the two stereoisomeric androstan-3β,16-diols and proof of their configurations
    1955, Vol. 20, Issue 6, pp. 1464–1472 [Abstract]
  • J. Fajkoš
    On steroids. XV. The configuration of some 16-bromo derivatives of androstane
    1955, Vol. 20, Issue 2, pp. 312–335 [Abstract]
  • J. Fajkoš and F. Šorm
    On Steroids. XI. Preparation of the stereoisomeric androstane-16-carboxylic acids
    1954, Vol. 19, Issue 4, pp. 766–781 [Abstract]
  • J. Fajkoš and F. Šorm
    On steroids. IX. Synthesis of 3-hydroxy-16-ketoandrostane and of 3,16-diketoandrostene-(4)
    1954, Vol. 19, Issue 2, pp. 349–356 [Abstract]
  • J. Fajkoš and F. Šorm
    On steroids. VII. Synthesis of 3β-hydroxyandrosta-7,16-diene-16-carboxylic acid
    1954, Vol. 19, Issue 1, pp. 91–97 [Abstract]
  • F. Šorm and J. Fajkoš
    On the synthesis of 6-methylazulene
    1947, Vol. 12, pp. 81–92 [Abstract]