Collect. Czech. Chem. Commun.
1987, 52, 2991-3012
https://doi.org/10.1135/cccc19872991
Solvolytic rearrangements in 4β,5-cyclopropano-5β-cholestane-3β,19-diol 3-acetate 19-p-toluenesulphonate
Jiří Joskaa, Jan Fajkoša and František Turečekb
a Institute of Organic Chemistry and Biochemistry, Czechoslovak Academy of Sciences, 166 10 Prague 6
b The J. Heyrovský Institute of Physical Chemistry and Electrochemistry, Czechoslovak Academy of Sciences, 121 38 Prague 2
Individual author index pages
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Are There Two Different Geometric Isomers of the O=C=N=C=O Cation?
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Franck-Condon Dominated Chemistry. Formation and Dissociations of the Dimethylhydroxysulfuranyl Radical
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1996, Vol. 61, Issue 11, pp. 1647–1654 [Abstract] - Jan Fajkoš and Vladimír Pouzar
Synthesis of (19E)-17β-hydroxy-3-oxo-5α-androstan-19-al 19-(O-carboxymethyl)oxime
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Synthesis of (19E)-3,20-dioxopregn-4-en-19-al 19-(O-carboxymethyl)oxime
1991, Vol. 56, Issue 5, pp. 1087–1092 [Abstract] - Jan Fajkoš, Vladimír Pouzar and Karel Vereš
Synthesis of (19E)-17β-hydroxy-3-oxoandrost-4-en-19-al 19-(O-carboxymethyl)oxime
1990, Vol. 55, Issue 8, pp. 2086–2094 [Abstract] - Jan Fajkoš and Jiří Joska
Solvolytic rearrangements in 4β,5-cyclopropano-5β-androstane-3β,17β,19-triol 3-acetate 17-benzoate 19-p-toluenesulfonate
1989, Vol. 54, Issue 3, pp. 751–759 [Abstract] - František Tureček, Libor Brabec, Tomáš Vondrák, Vladimír Hanuš, Josef Hájíček and Zdeněk Havlas
Sulfenic acids in the gas phase. Preparation, ionization energies and heats of formation of methane-, ethene-, and benzenesulfenic acid
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A contribution to peroxy acid oxidation of α,β-unsaturated ketones and linearly conjugated dienones: Reactions in the cholestane series
1988, Vol. 53, Issue 7, pp. 1549–1567 [Abstract] - František Tureček
Stereochemistry of organic ions in the gas phase: A review
1987, Vol. 52, Issue 8, pp. 1928–1984 [Abstract] - František Věžník, Eva Táborská, Hana Bochořáková, František Tureček, Vladimír Hanuš and Jiří Slavík
Alkaloids of Papaver nudicaule SUBSP. xanthopetalum (TRAUTV.) FEDDE and P. nudicaule SUBSP. album (REGEL) FEDDE from the section Scapiflora REICHB.
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Methyl 3α,6α-diacetoxy-10-oxo-(7α)-kemp-11-en-20-oate: The revised structure for the kempane derivative from the frontal gland secretion of Nasutitermes costalis soldiers
1987, Vol. 52, Issue 3, pp. 707–713 [Abstract] - Ivan Černý, Vladimír Pouzar, Pavel Drašar, František Tureček and Miroslav Havel
Steroids with the β-crotonate (2-butenoate) side chain
1986, Vol. 51, Issue 1, pp. 128–140 [Abstract] - Pavel Drašar, Vladimír Pouzar, Ivan Černý, Miroslav Havel, František Tureček, Daniela Schmiedová and Karel Vereš
Preparation of 3-carboxypropanoates of digitoxin and digoxin and their conjugates with L-tyrosine
1985, Vol. 50, Issue 12, pp. 2760–2774 [Abstract] - Jiří Joska, Jan Fajkoš and Jaroslav Zajíček
Synthesis of 3β,4β-cyclopropano-19-nor-A-homosteroids
1985, Vol. 50, Issue 7, pp. 1611–1617 [Abstract] - Jan Fajkoš and Jiří Joska
Synthesis of 19-nordeoxycorticosterone 3-(O-carboxymethyl)-oxime
1985, Vol. 50, Issue 4, pp. 973–977 [Abstract] - Irena Valterová, Miloš Buděšínský, František Tureček and Jan Vrkoč
Minor diterpene components of the defense secretion from the frontal gland of soldiers of the species Nasutitermes costalis (HOLMGREN)
1984, Vol. 49, Issue 9, pp. 2024–2039 [Abstract] - Jiří Joska and Jan Farkaš
Synthesis of some 1,2-unsaturated analogues of androgens with the cyclopropane ring in 4,5-position
1984, Vol. 49, Issue 1, pp. 157–164 [Abstract] - Jiří Joska, Jan Fajkoš and Jaroslav Zajíček
Bromination of 19-acetoxy-4β,5-cyclopropano-5β-cholestan-3-one
1983, Vol. 48, Issue 12, pp. 3474–3481 [Abstract] - Jan Fajkoš, Jiří Joska and Jaroslav Zajíček
The bromination of the epimeric 4,5-cyclopropanocholestan-3-ones
1983, Vol. 48, Issue 12, pp. 3455–3473 [Abstract] - Pavel Kočovský, Ivo Starý, František Tureček and Vladimír Hanuš
Electrophilic additions to 10β-vinyl cholestane derivatives
1983, Vol. 48, Issue 10, pp. 2994–3019 [Abstract] - Karel Mach, Lidmila Petrusová, Helena Antropiusová, Vladimír Hanuš, František Tureček and Petr Sedmera
Intermolecular hydrogen transfer in unsaturated hydrocarbons induced by dimeric titanocene
1983, Vol. 48, Issue 10, pp. 2924–2936 [Abstract] - Jiří Joska and Jan Fajkoš
Synthesis of 19-hydroxylated analogues of androstenedione and testosterone with the cyclopropane ring in 4,5-position
1982, Vol. 47, Issue 9, pp. 2423–2432 [Abstract] - Ladislav Kohout, Vlastimil Šanda and Jan Fajkoš
Synthesis of two isomeric 16,17-cyclopropano derivatives of 5-pregnene
1982, Vol. 47, Issue 5, pp. 1503–1513 [Abstract] - František Tureček
Preparation of 7-oxabicyclo[4.3.0]nonanes and 2-oxabicyclo[4.4.0]decanes specifically labelled with deuterium
1982, Vol. 47, Issue 3, pp. 858–876 [Abstract] - Jan Fajkoš and Jiří Joska
The solvolyses of 3α and 3β-p-toluenesulphonates of 19-acetoxy-5,6β-cyclopropano-5β-cholestane-3,19-diols
1982, Vol. 47, Issue 1, pp. 144–155 [Abstract] - Pavel Kočovský, František Tureček and Václav Černý
Mechanism of acid cleavage of some steroid epoxides. Competition between neighboring group participation and external nucleophile attack
1982, Vol. 47, Issue 1, pp. 124–129 [Abstract] - Pavel Kočovský, František Tureček and Václav Černý
Mechanism of hypobromous acid addition to unsaturated steroids. Competition between neighboring group participation and external nucleophile attack
1982, Vol. 47, Issue 1, pp. 117–123 [Abstract] - Pavel Drašar, František Tureček and Miroslav Havel
17β-[4-(1,3-Thiazolyl)]-androst-5-ene derivatives
1981, Vol. 46, Issue 11, pp. 2906–2911 [Abstract] - Pavel Kočovský and František Tureček
An unusual rearrangement in hypobromous acid addition to 10β-vinyl cholestane derivatives
1981, Vol. 46, Issue 11, pp. 2892–2897 [Abstract] - Pavel Kočovský and František Tureček
Neighboring group participation and rearrangement in hypobromous acid addition to 10β-vinyl cholestane derivatives
1981, Vol. 46, Issue 11, pp. 2877–2891 [Abstract] - Jiří Joska and Jan Fajkoš
Synthesis of some 19-hydroxylated androgen analogues with the cyclopropane ring in 4,5-position
1981, Vol. 46, Issue 11, pp. 2751–2757 [Abstract] - František Tureček, Tomáš Trnka and Miloslav Černý
Fragmentation of isomeric dideoxy derivatives of 1,6-anhydro-β-D-hexopyranoses under electron impact
1981, Vol. 46, Issue 10, pp. 2390–2403 [Abstract] - František Tureček, Vladimír Hanuš, Petr Sedmera, Helena Antropiusová and Karel Mach
Cycloheptatriene dimers: New precursors of diamantane
1981, Vol. 46, Issue 6, pp. 1474–1485 [Abstract] - František Tureček and Ladislav Kohout
The stereospecific loss of water from B-homocholestanols under electron impact
1980, Vol. 45, Issue 9, pp. 2433–2442 [Abstract] - Ladislav Kohout and Jan Fajkoš
Analogues of androgens with a cyclopropane ring in 6α,7α-position
1980, Vol. 45, Issue 7, pp. 1974–1981 [Abstract] - Jiří Joska and Jan Fajkoš
Simmons-Smith methylenation of the 4,5-double bond in 19-hydroxylated steroids
1980, Vol. 45, Issue 6, pp. 1850–1859 [Abstract] - Jan Fajkoš and Jiří Joska
Synthesis of 11-hydroxylated androstane derivatives
1980, Vol. 45, Issue 6, pp. 1845–1849 [Abstract] - František Tureček
Preparation of cycloheptanols symmetrically labelled with deuterium
1980, Vol. 45, Issue 6, pp. 1820–1825 [Abstract] - Jan Fajkoš, Jiří Joska and František Tureček
Solvolysis of 5,6β-cyclopropano-5β-cholestane-3β,19-diol 3-acetate 19-p-toluenesulphonate
1980, Vol. 45, Issue 2, pp. 584–598 [Abstract] - František Tureček and Pavel Kočovský
The synthesis and mass spectra of some oxygen-bridged 5α-cholestane and B-homo-5α-cholestane derivatives
1980, Vol. 45, Issue 1, pp. 274–293 [Abstract] - Vlastimil Šanda, Ladislav Kohout and Jan Fajkoš
5,7-Cyclo-B-homopregnane derivatives with the corticoid ketol side chain
1980, Vol. 45, Issue 1, pp. 269–273 [Abstract] - František Tureček, Vladimír Hanuš and Miloš Tichý
The role of conformational mobility in the stereospecific loss of water under electron impact
1979, Vol. 44, Issue 12, pp. 3595–3603 [Abstract] - Ladislav Kohout and Jan Fajkoš
Acetolysis of 4β-methanesulphonyloxy-6β,7aβ-cyclo-B-homo-5α-cholestane
1979, Vol. 44, Issue 11, pp. 3308–3320 [Abstract] - František Tureček, Olga Turečková and Jaroslav Julák
The syntheses of methyl esters of pentadeconic acids with double branched chain
1979, Vol. 44, Issue 10, pp. 3111–3118 [Abstract] - František Tureček and Pavel Kočovský
Mass spectra of some 5-methyl-19-nor-5β-cholest-9-enes
1979, Vol. 44, Issue 2, pp. 429–438 [Abstract] - Jan Fajkoš and Jiří Joska
Simmons-Smith methylenation of the 5,6-double bond in 19-hydroxylated steroids
1979, Vol. 44, Issue 1, pp. 251–259 [Abstract] - Pavel Kočovský, Václav Černý and František Tureček
Westphalen rearrangement. Mechanism of formation of 5α-acetoxy derivatives
1979, Vol. 44, Issue 1, pp. 234–245 [Abstract] - Jiří Joska and Jan Fajkoš
19-Hydroxysteroids substituted in position 6
1978, Vol. 43, Issue 12, pp. 3433–3443 [Abstract] - Bruno Schönecker, Dieter Tresselt, Gerd Schubert, Ladislav Kohout and Jan Fajkoš
1H-NMR investigations. Application of trichloroacetyl isocyanate to structure determination of 3-, 6-, 7-, 7a- and 17-hydroxy steroids
1978, Vol. 43, Issue 10, pp. 2609–2618 [Abstract] - Jan Fajkoš and Jiří Joska
19-Norsteroids substituted in position 7
1978, Vol. 43, Issue 4, pp. 1142–1151 [Abstract] - Ladislav Kohout and Jan Fajkoš
Methylenation of 4,6-cholestadien-3-one
1978, Vol. 43, Issue 4, pp. 1134–1141 [Abstract] - Ladislav Kohout and Jan Fajkoš
Fission of the epimeric 2,3-epoxides in the 5,7β-cyclo-B-homo-5β-cholestane series
1978, Vol. 43, Issue 2, pp. 638–646 [Abstract]