384 results on '"Szymoniak, Jan"'
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2. Synthesis of 2-(1-aminocyclopropyl)pyrrolidine-3,4-diol derivatives applying titanium-mediated reaction conditions
3. Reactivity of sugar α-aminonitrile derivatives under titanium-mediated cyclopropanation conditions
4. A straightforward access to pyrrolidine-based ligands for asymmetric synthesis
5. The spirocyclopropyl moiety as a methyl surrogate in the structure of l-fucosidase and l-rhamnosidase inhibitors
6. Asymmetric synthesis of di- and trisubstituted pyrrolidinones via zirconium-mediated intramolecular coupling of N-3-alkenyl carbamates
7. Spirocyclopropyl pyrrolidines as a new series of α- l-fucosidase inhibitors
8. Ti(II)-mediated conversion of alpha-heterosubstituted (O, N, S) nitriles to functionalized cyclopropylamines. Effect of chelation on the cyclopropanation step
9. Zirconocene Complexes as New Reagents for the Synthesis of Cyclopropanes
10. Pentadienyl transfer reagents based on zirconium: preparation and reactions with carbonyl compounds
11. On the mechanism of the zirconium-catalysed addition of ethyl Grignard reagents to imines
12. Specific solvent effect on R 2ZrCl 2 (R=butyl, ethyl) reactivity, a density functional study
13. New Transformations from a 3-Silyloxy 2-Aza-1,3-diene: Consecutive Zr-Mediated Retro-Brook Rearrangement and Reactions with Electrophiles
14. Allyltitanation-Mukaiyama aldol sequence: a short way to control five stereogenic carbon centers
15. Lewis acid promoted reaction of acetals with η3-crotyltitanium reagents
16. A direct synthesis of 1-aryl- and 1-alkenylcyclopropylamines from aryl and alkenyl nitriles
17. A hydrozirconation/iodination-mediated access to tetrahydroquinolizinium salts. Application to the synthesis of Lupinine and (−)-Epiquinamide
18. Homocoupling of aldimines mediated by zirconocene: synthesis of vicinal diamines and imidazolidines
19. Titanium-Mediated Cyclopropanation of Nitriles with Unsaturated Grignard Reagents: Application to the Synthesis of Constrained Lysine Derivatives
20. Catalytic versus stoichiometric coupling of alkynes with trimethylvinylsilane mediated by zirconocene
21. ChemInform Abstract: Trapping the Lewis Acid Generated Transient Species from Pentafulvene Derived Diazanorbornenes with ortho-Functionalized Aryl Iodides and Aliphatic Alcohols.
22. ChemInform Abstract: Titanium‐Catalyzed Hydroalumination of Conjugated Dienes: Access to Fulvene‐Derived Allylaluminium Reagents and Their Diastereoselective Reactions with Carbonyl Compounds.
23. Titanium-Catalyzed Hydroalumination of Conjugated Dienes: Access to Fulvene-Derived Allylaluminium Reagents and Their Diastereoselective Reactions with Carbonyl Compounds
24. ChemInform Abstract: Palladium/Lewis Acid Mediated Domino Reaction of Pentafulvene Derived Diazabicyclic Olefins: Efficient Access to Spiropentacyclic Motif with an Indoline and Pyrazolidine Fused to Cyclopentene.
25. ChemInform Abstract: Pentafulvene‐Derived η3‐Allyltitanocenes as Intermediates for the Stereoselective Functionalization of 5‐Membered Carbocycles.
26. Palladium/Lewis Acid Mediated Domino Reaction of Pentafulvene Derived Diazabicyclic Olefins: Efficient Access to Spiropentacyclic Motif with an Indoline and Pyrazolidine Fused to Cyclopentene
27. Synthesis of a C-glucosylated cyclopropylamide and evaluation as a glycogen phosphorylase inhibitor
28. Addition of chiral β-hydroxy (protected) enol silanes to benzaldehyde dimethyl acetal: Access to polypropionate five-carbon stereosequences
29. Asymmetric Mukaiyama aldol coupling between anti α-methyl-β-hydroxy enol silanes and propanal catalyzed by chiral binaphtholtitanium complex
30. Pentafulvene-derived η3-allyltitanocenes as intermediates for the stereoselective functionalization of 5-membered carbocycles
31. Reactivity differences between 2,4- and 2,5-disubstituted zirconacyclopentadienes: a highly selective and general approach to 2,4-disubstituted phospholes
32. Cyclopropyl-tryptamine Analogues: Synthesis and Biological Evaluation as 5-HT6Receptor Ligands
33. ChemInform Abstract: Switching Regioselectivity in the Allylation of Imines by N‐Side Chain Tuning.
34. ChemInform Abstract: Reactivity of Sugar α-Aminonitrile Derivatives under Titanium-Mediated Cyclopropanation Conditions.
35. Switching Regioselectivity in the Allylation of Imines by N-Side Chain Tuning
36. ChemInform Abstract: Diastereoselective Access to Nonracemic 2-cis-Substituted and 2,6-cis-Disubstituted Piperidines.
37. Diastereoselective Access to Nonracemic 2-cis-Substituted and 2,6-cis-Disubstituted Piperidines
38. ChemInform Abstract: Access to Enantiomerically Enriched cis‐2,3‐Disubstituted Azetidines via Diastereoselective Hydrozirconation.
39. ChemInform Abstract: Homocoupling of Aldimines Mediated by Zirconocene: Synthesis of Vicinal Diamines and Imidazolidines.
40. The Combination of Prolinoamino Acids and Cyclopropylamino Acids Leads to Fully Functionalized, Stable β‐Turns in Water
41. Access to Enantiomerically Enriched cis-2,3-Disubstituted Azetidines via Diastereoselective Hydrozirconation
42. ChemInform Abstract: Diastereoselective Access to trans-2-Substituted Cyclopentylamines.
43. Diastereoselective Access to trans-2-Substituted Cyclopentylamines
44. ChemInform Abstract: Diastereoselective Access to Enantiomerically Pure cis-2,3-Disubstituted Pyrrolidines.
45. Titanium-Catalyzed Cyclopropanation of Boc-Protected Cyanohydrins: A Short Access to Aminocyclopropanecarboxylic Acid Derivatives
46. Diastereoselective Access to Enantiomerically Pure cis-2,3-Disubstituted Pyrrolidines
47. ChemInform Abstract: A Direct Conversion of α,β-Unsaturated Ketones to Vinylcyclopropanes: New Zirconium-Mediated Reaction.
48. ChemInform Abstract: Catalytic versus Stoichiometric Coupling of Alkynes with Trimethylvinylsilane Mediated by Zirconocene.
49. Asymmetric synthesis of proline-based conformationally constrained tryptophan mimetic
50. A Concise Stereoselective Synthesis of 2-Substituted 1-Aminocyclopropanecarboxylic Acids
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