Collect. Czech. Chem. Commun.
1988, 53, 2667-2674
https://doi.org/10.1135/cccc19882667
Transition-metal catalysis in Michael addition of β-dicarbonyls: Tuning of the reaction conditions
Pavel Kočovský and Dalimil Dvořák
Institute of Organic Chemistry and Biochemistry, Czechoslovak Academy of Sciences, 166 10 Prague 6
Individual author index pages
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(Purine-6-yl)magnesium chloride: Preparation and reactivity
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Covalently linked purine dimers or trimers and purine–pyrimidine conjugates – analogues of nucleobase-pairs or triplets
Symposium Series 2002, Vol. 5, pp. 36–37 [Abstract]
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Towards a novel approach to C-nucleosides
Symposium Series 2005, Vol. 7, pp. 277–278 [Abstract]
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6-Alkynylpurines bearing electronacceptor substituents: Preparation, reactivity in cycloaddition reactions and cytostatic activity
2011, Vol. 76, Issue 12, pp. 1487–1527 [Abstract] - Miroslava Tobrmanová, Tomáš Tobrman* and Dalimil Dvořák
Pd-catalyzed allylic substitution of purin-8-yl(allyl) acetate: Route to (E)-alkenylpurines
2011, Vol. 76, Issue 4, pp. 311–326 [Abstract] - Martin Klečka, Martin Křováček, Tomáš Tobrman* and Dalimil Dvořák
Synthesis of (E)-6-alkenylpurines via Pd-catalyzed stannation/protodestannation tandem process of alkynylpurines
2010, Vol. 75, Issue 3, pp. 313–332 [Abstract] - Jan Štambaský, Andrei V. Malkov* and Pavel Kočovský*
Preparation of Boc-Protected Cinnamyl-Type Alcohols: A Comparison of the Suzuki-Miyaura Coupling, Cross-Metathesis, and Horner-Wadsworth-Emmons Approaches and Their Merit in Parallel Synthesis
2008, Vol. 73, Issue 5, pp. 705–732 [Abstract] - Tomáš Tobrman and Dalimil Dvořák*
Reductive Dimerization of 2- and 6-Iodopurines: Side Reaction in Pd-Catalyzed Cross-Coupling of Iodopurines
2007, Vol. 72, Issue 10, pp. 1365–1374 [Abstract] - Martin Klečka, Tomáš Tobrman and Dalimil Dvořák*
Cu(I)-Catalyzed Coupling of (9-Benzylpurin-6-yl)magnesium Chloride with Allyl Halides: An Approach to 6-Allylpurine Derivatives
2006, Vol. 71, Issue 8, pp. 1221–1228 [Abstract] - Dušan Drahoňovský, Petr Štěpnička and Dalimil Dvořák*
P-Chiral 2-{1'-[Butyl(phenyl)phosphanyl]ferrocen-1-yl}-4-isopropyl-4,5-dihydrooxazoles: A Second Chirality Center in Catalytic System
2005, Vol. 70, Issue 3, pp. 361–369 [Abstract] - Štěpán Vyskočil*, Stephen C. Lockhart, William L. Mitchell and Pavel Kočovský*
Synthesis of 2-Hydroxy-8'-(hydroxymethyl)-1,1'-binaphthalene (iso-Homo-BINOL). A New Structural Pattern in the Binaphthyl Realm
2003, Vol. 68, Issue 5, pp. 907–916 [Abstract] - Andrei V. Malkov, Benjamin P. Farn, Nigel Hussain and Pavel Kočovský*
Molybdenum-Catalyzed Allylic Substitution in Glycals: A C-C Bond-Forming Ferrier-Type Reaction
2001, Vol. 66, Issue 12, pp. 1735–1745 [Abstract] - Andrei V. Malkov* and Pavel Kočovský*
Tetrahydrocannabinol Revisited: Synthetic Approaches Utilizing Molybdenum Catalysts
2001, Vol. 66, Issue 8, pp. 1257–1268 [Abstract] - Dušan Drahoňovský, Ivana Císařová, Petr Štěpnička, Hana Dvořáková, Petr Maloň and Dalimil Dvořák*
An Alternative Approach to Chiral 2-[1'-(Diphenylphosphanyl)ferrocenyl]-4,5-dihydrooxazoles
2001, Vol. 66, Issue 4, pp. 588–604 [Abstract] - Martina Havelková, Martin Studenovský and Dalimil Dvořák*
N1-Substituted Hypoxanthine Derivatives from the Reaction of 6-Halopurines with Michael Acceptors Under the Conditions of Heck Reaction
2000, Vol. 65, Issue 5, pp. 797–804 [Abstract] - Štěpán Vyskočil*, Luděk Meca, Jiří Kubišta, Petr Maloň and Pavel Kočovský*
Synthesis of C2-Symmetrical [1,1'-Binaphthalene]-2,2'-diamines with Additional Chelating Groups Attached to the Nitrogen Atoms as Potential Ligands for Asymmetric Catalysis
2000, Vol. 65, Issue 4, pp. 539–548 [Abstract] - Miroslav Havránek and Dalimil Dvořák*
3-(Tributylstannyl)allyl Alcohols: Useful Building Blocks for Solid-Phase Synthesis of Skipped Dienes and Trienes
2000, Vol. 65, Issue 3, pp. 434–454 [Abstract] - Petr Suchý, Dalimil Dvořák* and Martina Havelková
Unexpected Course of the Reaction of 1,3-Bis(dimethylamino)trimethinium Perchlorate with 3-Substituted Prop-2-ynals Leading to 1-Aryl-2,4,6-triformylbenzenes
1999, Vol. 64, Issue 1, pp. 119–129 [Abstract] - Hana Dvořáková, Dalimil Dvořák and Antonín Holý
Synthesis of Acyclic Nucleotide Analogues Derived from 6-(sec- or tert-Alkyl)purines via Coupling of 6-Chloropurine Derivatives with Organocuprates
1998, Vol. 63, Issue 12, pp. 2065–2074 [Abstract] - Štěpán Vyskočil, Martin Smrčina and Pavel Kočovský
A Facile Synthesis of the Enantiopure, Nitrogen-Substituted 2,2'-Diamino-1,1'-binaphthyls as Potential Ligands for Catalytic Asymmetric Reactions
1998, Vol. 63, Issue 4, pp. 515–519 [Abstract] - Roman Wágner, Dalimil Dvořák and Antonín Holý
New application of the Stille coupling in the synthesis of 5-substituted uracils
1996, Vol. 61, Special Issue, pp. S118–S119 [Abstract] - Zdeněk Arnold, Dalimil Dvořák and Miroslav Havránek
Convenient Preparation of 1,3-Bis(dimethylamino)trimethinium Perchlorate, Tetrafluoroborate and Hexafluorophosphate
1996, Vol. 61, Issue 11, pp. 1637–1641 [Abstract] - Martin Smrčina, Štěpán Vyskočil, Jana Polívková, Jana Poláková and Pavel Kočovský
Synthesis and Resolution of Racemic 2-Amino-2'-hydroxy-1,1'-binaphthyl
1996, Vol. 61, Issue 10, pp. 1520–1524 [Abstract] - Pavel Kočovský
Organic Reactivity Control by Means of Neighboring Groups and Organometallics. A Personal Account
1994, Vol. 59, Issue 1, pp. 1–74 [Abstract] - Dalimil Dvořák, David Šaman, Zdeněk Arnold, Ivana Císařová and Václav Petříček
Cycloaddition Reactions of Arylmethylenemalonaldehydes with Olefins
1992, Vol. 57, Issue 11, pp. 2337–2358 [Abstract] - Miloš Buděšínský, Alexander Kasal, Želimír Procházka, Huynh Kim Thoa, Soňa Vašíčková and Pavel Kočovský
Revision of the structure of 3-methoxy-14α-hydroxy-D-homo-1,3,5-(10)-estratrien-17a-one. A simple 1H NMR method for the determination of configuration of hydroxy group in position 5 and/or 14 of the D-homo-steroid skeleton
1991, Vol. 56, Issue 7, pp. 1512–1524 [Abstract] - Dalimil Dvořák, David Šaman, Miloš Buděšínský and Zdeněk Arnold
Arbuzov rearrangement in the reaction of arylmethylenemalonaldehydes with trimethyl phosphite: Formation of 2-(α-dimethoxyphosphonylbenzyl)-3-methoxyacroleins
1987, Vol. 52, Issue 12, pp. 2926–2935 [Abstract] - Dalimil Dvořák and Zdeněk Arnold
Reaction of arylmethylenemalonaldehydes with some nucleophiles
1987, Vol. 52, Issue 11, pp. 2699–2709 [Abstract] - Dalimil Dvořák, David Šaman, Jana Hodačová, Vladimír Král and Zdeněk Arnold
Michael reaction of methylenemalonaldehydes: Synthetic approach to 4H-pyran-5-carboxaldehydes and 2-amino-4H-pyran-5-carboxaldehydes
1987, Vol. 52, Issue 11, pp. 2687–2698 [Abstract] - Ludmila A. Yanovskaya, Galya V. Kryshtal, Dalimil Dvořák, Vladimír Král and Zdeněk Arnold
Substituted methylenemalonaldehydes: Condensation of dialdehydes with 1,3-bis(dimethylamino)trimethinium perchlorate
1985, Vol. 50, Issue 10, pp. 2270–2274 [Abstract] - Zdeněk Arnold and Dalimil Dvořák
Benzylidenemalonaldehydes: Synthesis of 4-aryl-2-dimethylamino-4H-1,3-oxazine-5-carboxaldehyde
1985, Vol. 50, Issue 10, pp. 2265–2269 [Abstract] - Dalimil Dvořák, Miloš Buděšínský, David Šaman and Zdeněk Arnold
Benzylidenemalonaldehydes: A redox reaction during the attempted cycloaddition on nitrosobenzene
1985, Vol. 50, Issue 10, pp. 2260–2264 [Abstract] - Ludmila A. Yanovskaya, Galya V. Kryshtal, Dalimil Dvořák, Vladimír Král and Zdeněk Arnold
Synthesis of polyenylidenemalonaldehydes
1985, Vol. 50, Issue 6, pp. 1300–1304 [Abstract] - Ivo Starý and Pavel Kočovský
Synthesis of some allylic acetoxy derivatives in the steroid series
1985, Vol. 50, Issue 5, pp. 1227–1238 [Abstract] - Zdeněk Arnold, Dalimil Dvořák and Vladimír Král
Vinylogues and heterocyclic analogues of benzylidenemalonaldehydes
1984, Vol. 49, Issue 11, pp. 2613–2619 [Abstract] - Zdeněk Arnold, Vladimír Král and Dalimil Dvořák
Synthesis of benzylidenemalonaldehydes
1984, Vol. 49, Issue 11, pp. 2602–2612 [Abstract] - Pavel Kočovský
Participation by some oxygen containing groups in hypobromous acid addition to double bond
1983, Vol. 48, Issue 12, pp. 3660–3673 [Abstract] - Pavel Kočovský
Competition of two participating groups in hypobromous acid addition to some 4-cholestene derivatives
1983, Vol. 48, Issue 12, pp. 3643–3659 [Abstract] - Pavel Kočovský
Acetoxyl group as control element in electrophilic addition: Participation by acetoxy group and its competition with other participating groups in hypobromous acid addition to some 5-cholestene derivatives
1983, Vol. 48, Issue 12, pp. 3629–3642 [Abstract] - Pavel Kočovský
Neighboring group participation in electrophilic additions: The role of Markovnikov and Fürst-Plattner rule in hypobromous acid addition to 5,6-unsaturated cholestane derivatives
1983, Vol. 48, Issue 12, pp. 3618–3628 [Abstract] - Pavel Kočovský
Competition of 5(O)n and 6(O)n participation by 19a-substituent in hypobromous acid addition to 2,3- and 5,6-unsaturated 19-homocholestane derivatives
1983, Vol. 48, Issue 12, pp. 3606–3617 [Abstract] - Pavel Kočovský
Synthesis of some unsaturated 19a-homocholestane derivatives
1983, Vol. 48, Issue 12, pp. 3597–3605 [Abstract] - Pavel Kočovský
Synthesis of some 2,3- and 5,6-unsaturated 19-homosteroids bearing an oxygen containing group at the position 19a
1983, Vol. 48, Issue 12, pp. 3589–3596 [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] - Václav Černý and Pavel Kočovský
Neighboring group participation in hypobromous acid addition to 19-substituted 5α-cholest-1-enes and in acid cleavage of their epoxy analogs
1982, Vol. 47, Issue 11, pp. 3062–3076 [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 Kočovský, Pavel Drašar, Vladimír Pouzar and Miroslav Havel
Synthesis of some westphalen-type cardenolide analogs
1982, Vol. 47, Issue 1, pp. 108–116 [Abstract] - Vladimír Pouzar, Pavel Drašar, Pavel Kočovský and Miroslav Havel
Synthesis of some isocardenolide analogs and 17β-maleimidoandrostane of westphalen structural type
1982, Vol. 47, Issue 1, pp. 96–107 [Abstract] - Pavel Kočovský
Synthesis of 19-nor-10β-vinyl-5α-cholestane and its 5β-epimer
1981, Vol. 46, Issue 11, pp. 2898–2905 [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] - Miroslav Janda, Jan Šrogl, Hana Dvořáková, Dalimil Dvořák and Ivan Stibor
Electrooxidation of 2-arylfurans
1981, Vol. 46, Issue 4, pp. 906–916 [Abstract] - Pavel Kočovský and Václav Černý
A modified route to intermediates in partial syntheses of digitoxigenin and xysmalogenin
1981, Vol. 46, Issue 2, pp. 446–451 [Abstract] - Pavel Kočovský and Václav Černý
Participation of 19-substituents in acid cleavage of steroidal 3α,4α- and 4α,5α-epoxides
1980, Vol. 45, Issue 11, pp. 3199–3209 [Abstract] - Pavel Kočovský and Václav Černý
Participation of 19-substituents in acid cleavage of steroidal 5α,6α-epoxides
1980, Vol. 45, Issue 11, pp. 3190–3198 [Abstract] - Pavel Kočovský and Václav Černý
Participation of 19-substituents in hypobromous acid addition to 3,4- and 4,5-unsaturated steroids
1980, Vol. 45, Issue 11, pp. 3030–3038 [Abstract] - Pavel Kočovský and Václav Černý
Participation of 19-substituents in electrophilic additions. influence of 3β-substitution on hypobromous acid addition to 5,6-unsaturated steroids
1980, Vol. 45, Issue 11, pp. 3023–3029 [Abstract] - Pavel Kočovský
Synthesis of 3,4-, 4,5- and 5,6-unsaturated 19-substituted cholestane derivatives and related epoxides
1980, Vol. 45, Issue 11, pp. 3008–3022 [Abstract] - Pavel Kočovský
Synthesis of 14-deoxy-14α-strophanthidin
1980, Vol. 45, Issue 11, pp. 2998–3007 [Abstract] - Pavel Kočovský and Václav Černý
Synthesis of 14-deoxy-14α-strophanthidol
1980, Vol. 45, Issue 3, pp. 921–926 [Abstract] - Pavel Kočovský, Ladislav Kohout and Václav Černý
Participation of 19-substituents in electrophilic additions to 6,7-unsaturated 5α-cholestane and B-homo 5α-cholestane derivatives; A case of competition between the participation of an ambident neighboring group and external nucleophile attack
1980, Vol. 45, Issue 2, pp. 559–583 [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] - Pavel Kočovský and Václav Černý
Synthesis of 6β,19-dimethoxy-3α,5-cyclo-5α-pregnan-20-one
1979, Vol. 44, Issue 7, pp. 2275–2283 [Abstract] - Pavel Kočovský
Model experiments in the synthetic approach to strophanthidin: The synthesis of 3β,5-dihydroxy-5β-cholestan-19-al
1979, Vol. 44, Issue 7, pp. 2156–2160 [Abstract] - Pavel Kočovský and Václav Černý
Participation of 19-ester groups in the cleavage of 2α,3α- and 5α,6α-steroid epoxides. A case of competition between participation and external nucleophile attack
1979, Vol. 44, Issue 5, pp. 1496–1509 [Abstract] - Pavel Kočovský, Václav Černý and Miroslava Synáčková
Participation of 19-ester groups in hypobromous acid additions to 2,3- and 5,6-unsaturated steroids
1979, Vol. 44, Issue 5, pp. 1483–1495 [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] - Pavel Kočovský and Václav Černý
Reduction of some mesyloxy and tosyloxy steroids with sodium iodide and zinc dust
1979, Vol. 44, Issue 1, pp. 246–250 [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] - Pavel Kočovský and Václav Černý
Participation of the methoxyl group in the cleavage of some 19-substituted steroid epoxides. A case of competition between internal and external nucleophile attack
1979, Vol. 44, Issue 1, pp. 226–233 [Abstract] - Huynh Kim Thoa, Želimír Procházka, Miloš Buděšínský and Pavel Kočovský
Hydroxylation of 6β-methoxy-3α,5-cyclo-5α-androstan-17-one with Rhizopus nigricans
1978, Vol. 43, Issue 9, pp. 2305–2311 [Abstract] - Pavel Kočovský and Václav Černý
Preparation of some 6β-substituted 5-hydroxy-5α-cholest-2-enes
1978, Vol. 43, Issue 7, pp. 1933–1941 [Abstract] - Pavel Kočovský and Václav Černý
Participation of the methoxyl group in electrophilic additions to some unsaturated 19-methoxy steroids
1978, Vol. 43, Issue 7, pp. 1924–1932 [Abstract] - Pavel Kočovský and Václav Černý
Neighboring group participation in some electrophilic additions to 19-substituted 5α-cholest-2-enes and 5-cholestenes
1978, Vol. 43, Issue 1, pp. 327–335 [Abstract] - Pavel Kočovský, V. Černý, S. Vašíčková and M. Synáčková
Stereochemistry of some 5-methyl-19-nor-5β-cholest-9-ene derivatives
1977, Vol. 42, Issue 11, pp. 3339–3353 [Abstract] - Pavel Kočovský and V. Černý
Structural requirements in Westphalen rearrangement
1977, Vol. 42, Issue 8, pp. 2415–2437 [Abstract] - Pavel Kočovský and Ž. Procházka
The synthesis of pregnane derivatives with an aromatic B-ring
1977, Vol. 42, Issue 2, pp. 553–559 [Abstract] - Pavel Kočovský and V. Černý
Transannular participation of the hydroxyl group in the addition of hypobromous acid to some 5-hydroxy-5α-cholest-2-enes
1977, Vol. 42, Issue 1, pp. 353–365 [Abstract] - Pavel Kočovský and V. Černý
Transannular participation of the hydroxyl group in Woodward addition to some 5-hydroxy-5α-cholest-2-enes
1977, Vol. 42, Issue 1, pp. 163–172 [Abstract] - Pavel Kočovský and V. Černý
Preparation of some 5-hydroxy-5α-cholest-2-enes
1977, Vol. 42, Issue 1, pp. 155–162 [Abstract] - Pavel Kočovský and V. Černý
Preparation of some 5-methyl-19-nor-5β-cholestane derivatives
1976, Vol. 41, Issue 9, pp. 2620–2629 [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] - Pavel Kočovský and Ž. Procházka
The synthesis of androstane derivatives with an aromatic B-ring
1974, Vol. 39, Issue 7, pp. 1905–1913 [Abstract] - Pavel Kočovský, K. K. Košoev and Ž. Procházka
On Steroids. CLXI. The synthesis of some new steroid glucosides
1973, Vol. 38, Issue 11, pp. 3273–3278 [Abstract]