Collect. Czech. Chem. Commun. 1961, 26, 1669-1679
https://doi.org/10.1135/cccc19611669

Steroidderivate XII. Chromatographie neutraler Steroide an einer dünnen Aluminiumoxydschicht

S. Heřmánek, V. Schwarz and Z. Čekan

Individual author index pages


Other CCCC articles of these authors

  • J. Plešek, S. Heřmánek and Z. Janoušek
    The synthesis and structure of the heteroboranes 6,8-S2B7H9 and 6,8-CSB7H11
    1977, Vol. 42, Issue 3, pp. 785–792 [Abstract]
  • J. Plešek, S. Heřmánek, K. Baše, Lee J. Todd and W. F. Wright
    Zwitterionic compounds of the 8,8'-X(C2B9H10)2Co series with monoatomic O, S, Se, Te, N bridges between carborane ligands
    1976, Vol. 41, Issue 12, pp. 3509–3515 [Abstract]
  • S. Heřmánek, V. Gregor, B. Štíbr, J. Plešek, Z. Janoušek and V. A. Antonovich
    Antipodal and vicinal shift effects in 11B, 13C, and 1H NMR spectra of substituted dicarba-closo-dodecarboranes(12)
    1976, Vol. 41, Issue 5, pp. 1492–1499 [Abstract]
  • Z. Plzák, B. Štíbr, J. Plešek and S. Heřmánek
    Synthesis of fluorophenyl and 3-fluorobenzyl derivatives of decarborane and the electron properties of 5- and 6-decaboranyl groups
    1975, Vol. 40, Issue 12, pp. 3602–3607 [Abstract]
  • S. Heřmánek, H. Plotová and J. Plešek
    On the acidity characteristics of decaborane(14) and its benzyl derivatives in organic solvent-water systems
    1975, Vol. 40, Issue 12, pp. 3593–3601 [Abstract]
  • Z. Janoušek, S. Heřmánek, J. Plešek and B. Štíbr
    Tetracarba-dinido-docosaborane (C4B18H22), A new type of carborane, its chemistry and structure
    1974, Vol. 39, Issue 9, pp. 2363–2373 [Abstract]
  • B. Štíbr, J. Plešek and S. Heřmánek
    Synthesis of 6,9-dicarba-nido-decaborane(14) from 5,6-dicarba-nido-decaborane(12)
    1974, Vol. 39, Issue 7, pp. 1805–1809 [Abstract]
  • J. Plešek and S. Heřmánek
    Oxidation of 7,8-dicarba-nido-undecaborate to 5,6-dicarba-nido-decaborane(12) and its dehydrogenation to 1,2-dicarba-closo-decaborane(10)
    1974, Vol. 39, Issue 3, pp. 821–826 [Abstract]
  • F. Hanousek, B. Štíbr, S. Heřmánek and J. Plešek
    Chemistry of boranes. XXXI. Infrared spectra of decaborane and its deuterio derivatives
    1973, Vol. 38, Issue 5, pp. 1312–1320 [Abstract]
  • B. Štíbr, J. Plešek and S. Heřmánek
    Chemistry of boranes. XXX. Some reactions of 5,6-dicarba-nido-decaborane(12)
    1973, Vol. 38, Issue 2, pp. 338–342 [Abstract]
  • S. Heřmánek, J. Plešek, B. Štíbr, Z. Janoušek and T. Hanslík
    Chemistry of boranes. XXVIII. Hydrogenation of 6,9-bis(dialkyl sulfide)decaborane to the parent decaborane
    1972, Vol. 37, Issue 12, pp. 4001–4004 [Abstract]
  • V. Schwarz
    Steroid derivatives. LXXIV. Cleavage of steroid (16S)-spiro-[16,2']-oxirans of 20-pregnanone series with hydrogen bromide
    1972, Vol. 37, Issue 12, pp. 3909–3917 [Abstract]
  • J. Plešek, T. Hanslík, F. Hanousek and S. Heřmánek
    Chemistry of boranes. XXVII. Lewis acidity of some substituted 1,2-dicarba-closo-dodecaboranes
    1972, Vol. 37, Issue 10, pp. 3403–3409 [Abstract]
  • F. Hanousek, B. Štíbr, S. Heřmánek, J. Plešek, A. Vítek and F. Haruda
    Chemistry of boranes. XXVI. Infrared spectra of monosubstituted decaboranes
    1972, Vol. 37, Issue 9, pp. 3001–3009 [Abstract]
  • B. Štíbr, J. Plešek and S. Heřmánek
    Chemistry of boranes. XXV. Reactions of bis- and mono-ligando derivatives of decaborane with hydrogen halides
    1972, Vol. 37, Issue 8, pp. 2696–2700 [Abstract]
  • V. Schwarz and J. Protiva
    Steroid derivatives. LXXIII. Hydroxylation of substances of pregnane series with Coniosporium rhizophilum (PREUSS)
    1972, Vol. 37, Issue 5, pp. 1577–1584 [Abstract]
  • V. Schwarz
    Steroid derivatives. LXXII. Formation and reactions of steroid 16-spiro-2'-oxirans
    1972, Vol. 37, Issue 2, pp. 637–645 [Abstract]
  • V. Schwarz, J. Protiva and J. Martínková
    Steroid derivatives. LXX. Microbial hydroxylation of 17α,21-dihydroxy-16-methylene-4-pregnene-3,20-dione
    1971, Vol. 36, Issue 10, pp. 3455–3462 [Abstract]
  • B. Štíbr, J. Plešek, F. Hanousek and S. Heřmánek
    Chemistry of boranes. XXIII. Reaction of 6,9-bis(dialkylsulfido)dodecahydrodecaboranes with mercuric salts
    1971, Vol. 36, Issue 5, pp. 1794–1799 [Abstract]
  • S. Heřmánek and H. Plotová
    Chemistry of boranes. XXII. The acidity of boranes
    1971, Vol. 36, Issue 4, pp. 1639–1643 [Abstract]
  • S. Heřmánek and J. Plešek
    Chemistry of boranes. XXI. Resolution of iso-octadecaborane to optical enantiomers
    1970, Vol. 35, Issue 8, pp. 2488–2493 [Abstract]
  • V. Schwarz, P. Pihera and K. Syhora
    Steroid derivatives. LXVI. The synthesis of 17α-acetoxy-16-methylene analogues of the 19-norprogesterone series
    1970, Vol. 35, Issue 5, pp. 1536–1546 [Abstract]
  • J. Plešek, V. Gregor and S. Heřmánek
    Chemistry of boranes. XX. Optical isomerism in the o-carborane series
    1970, Vol. 35, Issue 1, pp. 346–349 [Abstract]
  • J. Plešek, S. Heřmánek and B. Štíbr
    Chemistry of boranes. XIX. A rearrangement of the borane skeleton by nucleophilic replacement of substituents
    1970, Vol. 35, Issue 1, pp. 344–346 [Abstract]
  • J. Stuchlík, S. Heřmánek, J. Plešek and B. Štíbr
    Chemistry of boranes. XVIII. A preparative separation of halogenodecaboranes. The isolation of 1-, 2-, 5-, and 6-bromotridecahydrodecaboranes
    1970, Vol. 35, Issue 1, pp. 339–343 [Abstract]
  • B. Štíbr, J. Plešek and S. Heřmánek
    Chemistry of boranes. XVII. The sequential bromination and alcoholysis of B9 and B10 addition compounds
    1969, Vol. 34, Issue 11, pp. 3241–3247 [Abstract]
  • J. Plešek, S. Heřmánek and B. Štíbr
    Chemistry of boranes. XVI. Optical isomerism in the decaborane series
    1969, Vol. 34, Issue 11, pp. 3233–3240 [Abstract]
  • I. Bartošek and Z. Čekan
    Oxidation of 17β-hydroxyandrostane derivatives by 17β-hydroxysteroid dehydrogenase from guinea-pig liver
    1969, Vol. 34, Issue 6, pp. 1829–1831 [Abstract]
  • B. Štíbr, J. Plešek and S. Heřmánek
    Chemistry of boranes. XV. Synthesis, properties, reactions and mechanism of formation of 5(6)-halogenotridecahydrodecaboranes
    1969, Vol. 34, Issue 1, pp. 194–205 [Abstract]
  • V. Schwarz, J. Zachová and K. Syhora
    Steroid derivatives. LVIII. Synthesis of 17α-acetoxy-16-methylene-19-norpregn-4-ene-3,20-dione
    1968, Vol. 33, Issue 12, pp. 4337–4349 [Abstract]
  • J. Plešek, S. Heřmánek and B. Štíbr
    Synthesis of (+)-1,3,3-trimethyl-6-thia[2,2,2]bicyclooctane
    1968, Vol. 33, Issue 7, pp. 2336–2338 [Abstract]
  • S. Heřmánek, J. Plešek, B. Štíbr and F. Hanousek
    Chemistry of boranes. XIV. New method of preparation of compounds of the B9H13L type; Mechanism of solvolytic degradation of boranes and their derivatives
    1968, Vol. 33, Issue 7, pp. 2177–2190 [Abstract]
  • S. Heřmánek, V. Gregor and J. Plešek
    Chemistry of boranes. XII. Chromatography of o-carboranes on a silica gel layer
    1968, Vol. 33, Issue 5, pp. 1609–1611 [Abstract]
  • V. Gregor, S. Heřmánek and J. Plešek
    Chemistry of boranes. XI. Preparation of 1-ethoxy-o-carborane
    1968, Vol. 33, Issue 3, pp. 980–983 [Abstract]
  • B. Štíbr, S. Heřmánek, J. Plešek and J. Stuchlík
    Chemistry of boranes. IX. Reaction of diborane with diisopropyl ether
    1968, Vol. 33, Issue 3, pp. 976–979 [Abstract]
  • J. Plešek, S. Heřmánek and F. Hanousek
    Chemistry of boranes. X. Novel stable borane B16H20
    1968, Vol. 33, Issue 3, pp. 699–705 [Abstract]
  • J. Plešek, S. Heřmánek and B. Štíbr
    Chemistry of boranes. VIII. Synthesis and reactions of 6,6'-oxido-bis-tridecahydrodecaborane
    1968, Vol. 33, Issue 3, pp. 691–698 [Abstract]
  • J. Protiva, V. Schwarz and K. Syhora
    Steroid derivatives. LIII. Substrate specificity of Flavobacterium buccalis in microbial transformation of derivatives of 3β-hydroxypregn-5-en-20-one
    1968, Vol. 33, Issue 1, pp. 83–91 [Abstract]
  • J. Plešek, S. Heřmánek, B. Štíbr and F. Hanousek
    Chemistry of boranes. VII. A new synthesis of borane B18H22; An application of three-center bonds theory on the interpretation of reaction mechanisms
    1967, Vol. 32, Issue 3, pp. 1095–1103 [Abstract]
  • J. Plešek, B. Štíbr and S. Heřmánek
    Chemistry of boranes. VI. The reaction of bis-dialkylsulphido-dodecahydrodecaboranes with hydrohalogens. General preparation of 6- (or 5-)halogentridecahydrodecaboranes
    1966, Vol. 31, Issue 12, pp. 4744–4745 [Abstract]
  • V. Schwarz, J. Martínková, J. Protiva and K. Syhora
    Steroid-Derivate XLVI. Mikrobielle 7β,11α-Dihydroxylierung der Steroide
    1966, Vol. 31, Issue 12, pp. 4703–4709 [Abstract]
  • T. Hanslík, J. Plešek and S. Heřmánek
    Chemistry of boranes. V. Reaction between boron trichloride and sodium aluminium hydride
    1966, Vol. 31, Issue 11, pp. 4215–4220 [Abstract]
  • J. Plešek and S. Heřmánek
    Chemistry of boranes. IV. On preparation, properties, and behavior towards Lewis bases of magnesium borohydride
    1966, Vol. 31, Issue 10, pp. 3845–3858 [Abstract]
  • J. Plešek and S. Heřmánek
    On synthesis and properties of magnesium aluminium hydride
    1966, Vol. 31, Issue 8, pp. 3060–3067 [Abstract]
  • Z. Čekan, M. Tichá and I. Bartošek
    Hydrolysis of esters of androstane derivatives by rat liver homogenate relationship between the rate of hydrolysis and structure
    1966, Vol. 31, Issue 5, pp. 2068–2072 [Abstract]
  • S. Heřmánek and J. Plešek
    Chemistry of boranes. III. Relationship between structure and chromatographic behaviour of boranes and their addition compounds with Lewis bases
    1966, Vol. 31, Issue 5, pp. 1975–1984 [Abstract]
  • S. Heřmánek, J. Plešek and V. Gregor
    Chemistry of boranes. II. Thin layer chromatography of non-ionic boron compounds
    1966, Vol. 31, Issue 3, pp. 1281–1287 [Abstract]
  • S. Heřmánek and J. Plešek
    Chemie der Borhydride I. Herstellung von Magnesiumoktahydrotriboraten
    1966, Vol. 31, Issue 1, pp. 177–189 [Abstract]
  • V. Schwarz and S. Heřmánek
    Steroid derivatives. XXXII. Additive character of the influence of 3β- and 17β-substituents on bromine addition to 3β-, 17β-disubstituted Δ5-androstenes
    1964, Vol. 29, Issue 10, pp. 2360–2368 [Abstract]
  • H. Bočková, J. Holubek and Z. Čekan
    Inhaltsstoffe des Ölbaums (Olea europea L.)
    1964, Vol. 29, Issue 6, pp. 1484–1491 [Abstract]
  • H. Bočková, V. Schwarz and K. Syhora
    Steroid derivatives. XXVII. On some unusual reactions of 16β-bromo-Δ5-pregnene-3β,17α-diol-20-one
    1964, Vol. 29, Issue 5, pp. 1178–1186 [Abstract]
  • J. Trojánek, O. Štrouf, J. Holubek and Z. Čekan
    Über Alkaloide IX. Über die Struktur von Vincamin
    1964, Vol. 29, Issue 2, pp. 433–446 [Abstract]
  • J. Pitra, J. Reichelt and Z. Čekan
    Methoden zur Trennung von Naturstoffen X. Adsorptionseigenschaften von hydratisiertem Silikagel
    1963, Vol. 28, Issue 11, pp. 3072–3078 [Abstract]
  • J. Pitra and Z. Čekan
    Methoden zur Trennung von Naturstoffen VIII. Ableitung von Systemen für die Gegenstromverteilung
    1963, Vol. 28, Issue 9, pp. 2303–2309 [Abstract]
  • S. Heřmánek, V. Schwarz and Z. Čekan
    Methoden zur Trennung von Naturstoffen VII. Beziehung zwischen Substanz und Lösungsmittel bei der Chromatographie an Aluminiumoxyd
    1963, Vol. 28, Issue 8, pp. 2031–2039 [Abstract]
  • V. Procházka, Z. Čekan and R. B. Bates
    On terpenes. CLI. Structure of globicin, a guaianolide from Matricaria globifera (THUNB.) DRUCE
    1963, Vol. 28, Issue 5, pp. 1202–1210 [Abstract]
  • V. Schwarz and K. Syhora
    Steroid-Derivate XXIII. Über die Reaktion von Epoxyden mit wässrigen Halogenwasserstoffsäuren
    1963, Vol. 28, Issue 3, pp. 637–643 [Abstract]
  • V. Schwarz and K. Syhora
    Steroid-Derivative XXII. Chromatographie polarer Steroide an einer Aluminiumoxydschicht
    1963, Vol. 28, Issue 1, pp. 101–106 [Abstract]
  • J. Pitra, J. Moural and Z. Čekan
    Herzwirksame Glykoside V. Reaktion der 14,16β-Dihydroxycardenolide mit Thionylchlorid und Konstitutionsnachweis von 16β-Hydroxystrophanthidin (Strophadogenin)
    1962, Vol. 27, Issue 12, pp. 2985–2988 [Abstract]
  • J. Trojánek, O. Štrouf, K. Kavková and Z. Čekan
    Über Alkaloide VI. Vincaminin und Vincinin, zwei neue Alkaloide aus Vinca minor L.
    1962, Vol. 27, Issue 12, pp. 2801–2807 [Abstract]
  • V. Schwarz, S. Heřmánek and J. Trojánek
    Steroid-Derivate XX. Einfluss des 17β-Substituenten auf die Brom-Additionsgeschwindigkeit an 3β-Acetoxy-Δ5-androsten-Derivate
    1962, Vol. 27, Issue 12, pp. 2778–2783 [Abstract]
  • V. Schwarz
    Steroid-Derivate XVIII. Selektiver Schutz der Hydroxylgruppen in Steroid-Verbindungen durch die Trichloracetoxygruppe
    1962, Vol. 27, Issue 11, pp. 2567–2574 [Abstract]
  • B. Pelc and S. Heřmánek
    Steroid-Derivate XV. Dehydrobromierungsversuche an 6-Brom-7-ketocholan-derivaten
    1962, Vol. 27, Issue 9, pp. 2223–2226 [Abstract]
  • P. Horák, J. Holubek, V. Bumba and Z. Čekan
    Methoden zur Trennung von Naturstoffen V. Bestimmung von Morphin in Mohnkapselextrakten
    1962, Vol. 27, Issue 4, pp. 1037–1042 [Abstract]
  • Z. Čekan, J. Pitra and V. Procházka
    Separation methods for natural products. II. Enriched diamond separation and double withdrawal
    1962, Vol. 27, Issue 4, pp. 832–842 [Abstract]
  • V. Procházka, J. Pitra and Z. Čekan
    Separation methods for natural products. I. New countercurrent distribution procedure
    1962, Vol. 27, Issue 4, pp. 823–831 [Abstract]
  • S. Heřmánek, V. Schwarz and Z. Čekan
    Methods of separation of natural products. III. Measurement of activity of alumina by means of thin layer chromatography
    1961, Vol. 26, Issue 12, pp. 3170–3173 [Abstract]
  • J. Trojánek, H. Komrsová, J. Pospíšek and Z. Čekan
    Über N-Alkylcamphidine
    1961, Vol. 26, Issue 11, pp. 2921–2932 [Abstract]
  • J. Trojánek, J. Pospíšek and Z. Čekan
    Über Alkylderivate der stereoisomeren 2-Aminocamphane
    1961, Vol. 26, Issue 10, pp. 2602–2611 [Abstract]
  • V. Schwarz
    Über Steroid-Derivate XIV. Darstellung von Methylandrostendiol-Derivaten mit einer Sauerstoffunktion in Stellung 7
    1961, Vol. 26, Issue 8, pp. 1958–1966 [Abstract]
  • B. Pelc, S. Heřmánek and J. Holubek
    Über Steroid-Derivate XIII. Zur Dehydrobromierung von 2,4-Dibrom-3-keto-5α-androstan-derivaten in Dimethylformamid
    1961, Vol. 26, Issue 7, pp. 1852–1861 [Abstract]
  • J. Pitra and Z. Čekan
    Herzwirksame Glykoside III. Cardenolide des Adonisröschens (Adonis vernalis L.)
    1961, Vol. 26, Issue 6, pp. 1551–1558 [Abstract]
  • V. Schwarz, S. Heřmánek and J. Trojánek
    Steroid derivatives. XI. The effect of 3β-substituents on the rate of bromine addition to derivatives of Δ5-cholestene
    1961, Vol. 26, Issue 5, pp. 1438–1442 [Abstract]
  • V. Schwarz
    Steroid-Derivate X. Über die Darstellung von 5α-Pregnan-3β,16α-diol-20-on
    1961, Vol. 26, Issue 4, pp. 1207–1209 [Abstract]
  • J. Trojánek, K. Kavková, O. Štrouf and Z. Čekan
    Über Alkaloide IV. Über die Isolierung von Vincin, eines neuen Alkaloids aus Vinca minor L.
    1961, Vol. 26, Issue 3, pp. 867–873 [Abstract]
  • V. Schwarz and J. Trojánek
    Über Steroid-Derivate VIII. Quantitative Bestimmung der Doppelbindung in einigen Steroid-Verbindungen
    1961, Vol. 26, Issue 1, pp. 117–125 [Abstract]
  • Z. Čekan, V. Procházka, V. Herout and F. Šorm
    On terpenes. CXV. Isolation of globicin, a guaianolide from Matricaria globifera (THUNB.) DRUCE
    1960, Vol. 25, Issue 10, pp. 2553–2558 [Abstract]
  • J. Trojánek, O. Štrouf, K. Kavková and Z. Čekan
    Über Alkaloide III. Neue Alkaloide aus immergrün Vinca minor L.
    1960, Vol. 25, Issue 8, pp. 2045–2048 [Abstract]
  • S. Heřmánek and K. Syhora
    Steroid-Derivate IV. Spaltung von 16-Acyloxypregnan-20-onen mit Natriumhydrid
    1960, Vol. 25, Issue 3, pp. 743–747 [Abstract]
  • J. Piťha, S. Heřmánek and J. Vít
    Über die Reduktion der Carbonsäuren und ihrer Derivate mit Natriumaluminiumhydrid
    1960, Vol. 25, Issue 3, pp. 736–742 [Abstract]
  • S. Heřmánek
    Über Pyridinhomologe IV. 3,5-Dialkylpyridine
    1959, Vol. 24, Issue 8, pp. 2748–2753 [Abstract]
  • V. Schwarz, V. Černý and F. Šorm
    On steroids. XXXVII. Preparation of methyl 3β,16α-diaetoxybisnorallocholanate and its 20-epimer. A novel synthesis of the side chain of steroidal bisnor-acids
    1959, Vol. 24, Issue 6, pp. 1851–1859 [Abstract]
  • R. Lukeš, V. Heřmánková and S. Heřmánek
    Über die Alkylierung von Methylen-bis-malonsäureäthylester
    1959, Vol. 24, Issue 5, pp. 1695–1701 [Abstract]
  • Z. Čekan, V. Procházka, V. Herout and F. Šorm
    On terpenes. CI. Isolation and constitution of matricarin, another guaianolide from camomile (Matricaria chamomilla L.)
    1959, Vol. 24, Issue 5, pp. 1554–1557 [Abstract]
  • S. Heřmánek and J. Staněk
    Eine neue Synthese von Homoisovanillin
    1959, Vol. 24, Issue 4, pp. 1366–1368 [Abstract]
  • J. Pitra, H. Kolářová and Z. Čekan
    Ein neues System für die Papierchromatographie kardiotonischer Glykoside
    1959, Vol. 24, Issue 3, pp. 1011–1013 [Abstract]
  • J. Trojánek, J. Hoffmannová, O. Štrouf and Z. Čekan
    Vincaminorin, ein neues Alkaloid des Immergrüns (Vinca minor L.)
    1959, Vol. 24, Issue 2, pp. 526–529 [Abstract]
  • V. Schwarz, V. Černý and F. Šorm
    Über Steroide XXX. Synthese der 3β-Acetoxy-16α-hydroxyalloätiansäure
    1958, Vol. 23, Issue 5, pp. 940–945 [Abstract]
  • Z. Čekan, V. Herout and F. Šorm
    Über Terpene LXXX. Die Struktur von Matricin, ein Guajanolid aus der Kamille (Matricaria chamomilla L.)
    1957, Vol. 22, Issue 6, pp. 1921–1929 [Abstract]
  • S. Heřmánek and J. Trojánek
    Synthese von trans-Δ6,7-Oktahydroisochinolin
    1957, Vol. 22, Issue 4, pp. 1157–1161 [Abstract]
  • Z. Čekan and V. Herout
    Über Pflanzenstoffe IV. Die Isolierung von 5-Oxy-3,6,7,3',4'-pentamethoxyflavon aus Wermut (Artemisia absinthium L.)
    1956, Vol. 21, Issue 1, pp. 79–83 [Abstract]
  • J. Staněk and V. Schwarz
    Über eine neue Synthese der 2-Desoxy-D-glucose
    1955, Vol. 20, Issue 1, pp. 42–45 [Abstract]
  • Z. Čekan, V. Herout and F. Šorm
    On terpenes. LXII. Isolation and properties of the pro-chamazulene from Matricaria chamomilla L., A further compound of the guaianolide group
    1954, Vol. 19, Issue 4, pp. 798–804 [Abstract]
  • F. Šorm, Z. Čekan, V. Herout and H. Rašková
    Isolation of spasmolytically active substance from Matricaria chamomilla L.
    1953, Vol. 18, Issue 1, pp. 127–130 [Abstract]