Collect. Czech. Chem. Commun. 1972, 37, 2234-2245
https://doi.org/10.1135/cccc19722234

On steroids. CXXXIX. Addition of hypobromous acid derivatives to 5(6)-unsaturated B-norsteroids

A. Kasal and J. Joska

Individual author index pages


Other CCCC articles of these authors

  • A. Kasal and A. Trka
    Intramolecular hydride shift in some steroid hydroxy aldehydes and hydroxy ketones
    1977, Vol. 42, Issue 4, pp. 1389–1402 [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]
  • A. Kasal
    Reductive debromination of dibromo steroids
    1976, Vol. 41, Issue 7, pp. 2040–2046 [Abstract]
  • L. Eignerová and A. Kasal
    Intramolecular hydride shift in Oppenauer oxidation of some dihydroxy steroids
    1976, Vol. 41, Issue 4, pp. 1056–1065 [Abstract]
  • J. Fajkoš and J. Joska
    19-Hydroxy steroids substituted in position 7
    1976, Vol. 41, Issue 3, pp. 923–927 [Abstract]
  • A. Kasal
    Reactions of some dibromosteroids with silver salts in the presence of water
    1976, Vol. 41, Issue 1, pp. 140–150 [Abstract]
  • A. Kasal and M. Buděšínský
    Reaction of 5-bromo-6β-chloro-5α-cholestan-3β-ol with silver salts
    1975, Vol. 40, Issue 4, pp. 1231–1239 [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]
  • J. Fajkoš and J. Joska
    5,7-Cyclosteroids with an oxygen function in position 1
    1974, Vol. 39, Issue 7, pp. 1773–1779 [Abstract]
  • A. Kasal and A. Trka
    Reaction of 5,6-dibromosteroids with silver fluoride in the presence of water
    1974, Vol. 39, Issue 2, pp. 603–613 [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]
  • 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]
  • 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]
  • 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]
  • A. Kasal
    On steroids. CXLI. Reaction of silver fluoride with some 6α-bromo-B-norsteroids
    1972, Vol. 37, Issue 9, pp. 3095–3105 [Abstract]
  • A. Kasal and F. Šorm
    On steroids. CXXXIV. B-Nor and B-homosteroids with a potential antiandrogenic activity
    1971, Vol. 36, Issue 7, pp. 2507–2516 [Abstract]
  • A. Kasal
    On steroids. CXXXII. Oxidation of 18-benzoylaminoprogesterone with chromium trioxide
    1970, Vol. 35, Issue 12, pp. 3821–3825 [Abstract]
  • V. Černý, A. Kasal and F. Šorm
    On steroids. CXXVIII. Preparation and reactions of some 2-oxygenated 3α,5-cyclo-5α-cholestane derivatives
    1970, Vol. 35, Issue 4, pp. 1235–1254 [Abstract]
  • A. Kasal and O. Linet
    On steroids. CXXVII. Preparation of some cyclic steroidal ethers
    1969, Vol. 34, Issue 11, pp. 3479–3496 [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]
  • 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]
  • A. Kasal and V. Černý
    On steroids. CVIII. Preparation and properties of some androstan-18-carboxylic acid derivatives
    1967, Vol. 32, Issue 10, pp. 3733–3745 [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]
  • 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]
  • A. Kasal and V. Černý
    On steroids. CI. Preparation of some 18-homopregnane derivatives
    1966, Vol. 31, Issue 7, pp. 2759–2767 [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]
  • V. Černý, A. Kasal and F. Šorm
    On steroids. XCVI. Preparation and properties of some 18-oxygenated 18-homopregnane derivatives. A novel reaction of cyanogen bromide with amino alcohols and amino ketones
    1966, Vol. 31, Issue 4, pp. 1752–1784 [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]
  • 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]
  • A. Kasal, V. Černý and F. Šorm
    On steroids. LXXXIX. Preparation of some 3,5-cyclosteroid hormone analogs
    1965, Vol. 30, Issue 2, pp. 472–480 [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]
  • A. Kasal, A. Poláková, A. V. Kamernitzky, L. Lábler and V. Černý
    On steroids. LXXVI. N3-Methylholarrhimine and N20-methylholarrhimine
    1963, Vol. 28, Issue 5, pp. 1189–1195 [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]
  • A. Kasal, V. Černý and F. Šorm
    On steroids. LXXIII. Preparation of some 18-substituted steroids of androstane type from conessine
    1963, Vol. 28, Issue 2, pp. 411–420 [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]
  • A. Kasal, V. Černý and F. Šorm
    On steroids. LXXI. Mercuric acetate dehydrogenation of conanine derivatives. Preparation of 3-substituted lactams derived from 18-metylamino-5α-etianic acid
    1962, Vol. 27, Issue 12, pp. 2898–2906 [Abstract]
  • V. Černý and A. Kasal
    On steroids. LXIX. Preparation of (20R)-20-hydroxy-3-oxo-5α-pregnan-18-oic acid (18→20) lactone from 5,6-dihydro-N,N,N',N'-tetramethylholarrhimine
    1962, Vol. 27, Issue 12, pp. 2765–2770 [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]
  • 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]
  • 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]
  • V. Černý, J. Joska and L. Lábler
    On steroids. LIX. Application of thin layer chromatography without binder for rapid analytical and preparative separation of steroids
    1961, Vol. 26, Issue 6, pp. 1658–1668 [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]
  • A. Kasal, V. Černý and F. Šorm
    On steroids. LIII. 18-Benzoylaminoprogesterone and some of its reactions
    1960, Vol. 25, Issue 11, pp. 2849–2854 [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]
  • 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]
  • A. Kasal, V. Černý and F. Šorm
    On steroids. XLIX. Preparation of methylester of 18-dimethylamino-3-oxo-5α-androstan-17β-carboxylic acid
    1960, Vol. 25, Issue 3, pp. 927–933 [Abstract]
  • J. Joska and F. Šorm
    On steroids. XXXVIII. The synthesis of 3β-hydroxy-B-norandrost-5-en-17-one
    1958, Vol. 23, Issue 7, pp. 1377–1381 [Abstract]
  • J. Joska and F. Šorm
    On steroids. XX. Some nitrogen-containing analogues of the androgenic hormones
    1956, Vol. 21, Issue 3, pp. 754–760 [Abstract]
  • J. Joska, V. Černý and F. Šorm
    On steroids. X. Some dimethylamino derivatives of allopregnane
    1954, Vol. 19, Issue 3, pp. 551–558 [Abstract]