214 results on '"Kulinkovich, Oleg G."'
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2. Enantioselective cyclopropanation of carboxylic esters with alkyl magnesium bromides in the presence of titanium(IV) (4R,5R)-TADDOLates
3. The resolution of trans-2,2-dichloro-3-methylcyclopropanecarboxylic acid via crystallization of its salts with (+)- and (−)-α-phenylethylamine, and the transformation of the resulting enantiomers into (R)- and (S)-dimethyl 2-methylsuccinates
4. A cyclopropanol approach to the synthesis of both enantiomers of the C13–C21 fragment of epothilones
5. Studies on the origin of cis-diastereoselectivity of the titanium-mediated cyclopropanation of carboxylic esters with Grignard reagents. Stereochemistry of the intramolecular cyclization of β-metalloketones
6. The synthesis of the insect pheromone (2 S,3 R,7 R)-3,7-dimethyltridec-2-yl acetate from racemic 3,4-dimethyl-γ-butyrolactone by diastereoselective chiral resolution
7. 1,n-dicarbanionic titanium intermediates from monocarbanionic organometallics and their application in organic synthesis
8. A convenient route to 1-(2-oxiranyl)-1,4-diketones and their application to the synthesis of endo-brevicomin, endo-isobrevicomin, frontalin and related compounds via alkylated 6,8-dioxabicyclo[3.2.1]octan-2-ones
9. A convenient approach to the synthesis of 2-(2-aminoethyl)pyrroles and their heterocyclization into hydrogenated pyrrolopyridines and related pyrroloindolizines
10. Synthesis of 5-alkyl-4-amino-2-(trifluoromethyl)pyridines and their transformation into trifluoromethylated 1H-pyrazolo[4,3-c]pyridines
11. Synthesis of 3-(Trifluoromethyl)benzo[ c][1,6]naphthyridines from Substituted 4 H-Pyran-4-ones via 4-Amino-5-Aryl-2-(trifluoromethyl)pyridines
12. Titanium(IV) isopropoxide-catalysed reaction of alkylmagnesium halides with ethyl acetate in the presence of styrene. Non-hydride mechanism of ligand exchange in the titanacyclopropanes
13. Preparation of ketones from esters via substituted cyclopropanols : Application to the synthesis of (±)-ipsenol, (±)-ipsdienol and amitinol, the components of aggregation pheromones of the Ips bark beetles
14. The chemistry of cyclopropanols
15. Cyclopropanes in Organic Synthesis
16. Total synthesis of epothilone D by sixfold ring cleavage of cyclopropanol intermediates
17. Methyl 3-bromomethyl-3-butenoate as an isopentane building block for the stereoselective preparation of ( S)-4-methyl-3,6-dihydro-2 H-pyran-2-carbaldehyde and (+)-faranal
18. Insight into the Mechanism and Stereochemistry of the Transformations of Alkyltitanium Ate-Complexes. An Enhanced Enantioselectivity in the Cyclopropanation of the Carboxylic Esters with Titanacyclopropane Reagents
19. ChemInform Abstract: A Highly Stereoselective Route to Medium-Ring-Sized trans-Alkenolides (II) via Oxidative Fragmentation of Bicyclic Oxycyclopropane Precursors (I): Application to the Synthesis of (+)-Recifeiolide (III).
20. Synthesis of 5-alkyl-4-amino-2-(trifluoromethyl)pyridines and their transformation into trifluoromethylated 1H-pyrazolo[4,3-c]pyridines
21. Regiospecific synthesis of alfa-diones, alfa,alfa-dialkoxyketones and alfa-alkoxy-alfa-sulfenylated ketones
22. Highly stereoselective allylic ethylation with alkoxytitanacyclopropane reagents. Synthesis of (1 R/ S,7 R)-1,7-dimethylnonyl propanoate, the Western corn rootworm sex attractant
23. Structure and Reactivity of the Cyclopropane Species.
24. Ring Cleavage Reactions.
25. Synthesis of Cyclopropanes.
26. Triangulation Retrosynthetic Analysis.
27. Acyclic Compounds.
28. Cyclobutane Derivatives.
29. Cyclopentanes.
30. Cyclooctanes and Larger Carbocycles.
31. Heterocyclic Compounds.
32. Front Matter.
33. The Kulinkovich Cyclopropanation of Carboxylic Acid Derivatives
34. ChemInform Abstract: A Convenient Transformation of 2‐Alkylidenecycloalkanones into Alkyl‐Substituted Bicyclo[n.1.0]alkan‐1‐ols: Application to the Synthesis of Capsaicin.
35. ChemInform Abstract: A Convenient Method for the Preparation of N-Substituted 1-Acetonylaminocyclopropanes from Acetoacetic Ester Ethylene Acetal.
36. ChemInform Abstract: Preparation of Ketones from Esters via Substituted Cyclopropanols. Application to the Synthesis of (.+-.)-Ipsenol, (.+-.)-Ipsdienol and Amitinol, the Components of Aggregation Pheromones of the Ips Bark Beetles.
37. ChemInform Abstract: One-Step Preparation of 1,4-Diketones from Methyl Ketones and α-Bromomethyl Ketones in the Presence of ZnCl2×t-BuOH×Et2NR as a Condensation Agent.
38. ChemInform Abstract: Synthesis of 5-Alkyl-4-amino-2-(trifluoromethyl)pyridines and Their Transformation into Trifluoromethylated 1H-Pyrazolo[4,3-c]pyridines.
39. ChemInform Abstract: Synthesis of α,β-Epoxy Ketones from Alkyl- and Arylsubstituted Cyclopropanols.
40. Methyl 3-bromomethyl-3-butenoate as an isopentane building block for the stereoselective preparation of (S)-4-methyl-3,6-dihydro-2H-pyran-2-carbaldehyde and (+)-faranal
41. A highly stereoselective transformation of carboxylic esters to trisubstituted olefins via cationic cyclopropyl–allyl rearrangement of sulfonates of cis-1,2-disubstituted cyclopropanols
42. Highly stereoselective allylic ethylation with alkoxytitanacyclopropane reagents. Synthesis of (1R/S,7R)-1,7-dimethylnonyl propanoate, the Western corn rootworm sex attractant
43. ChemInform Abstract: A Highly Stereoselective Transformation of Carboxylic Esters to Trisubstituted Olefins via Cationic Cyclopropyl—Allyl Rearrangement of Sulfonates of cis-1,2-Disubstituted Cyclopropanols.
44. Advanced Procedure for the Preparation ofcis-1,2-Dialkylcyclopropanols – Modified Ate Complex Mechanism for Titanium-Mediated Cyclopropanation of Carboxylic Esters with Grignard Reagents
45. A Convenient Procedure for Transformation of Tertiary Cyclopropanols into 5-Substituted Isoxazoles.
46. Transformation of Esters into 2-Substituted Allyl Halides via Tertiary Cyclopropanols: Application in the Stereoselective Synthesis of (2S,3S,7S)-3,7-Dimethyl-2-pentadecyl Acetate, the Sex Pheromone of the Pine SawflyNeodiprion sertifer
47. The synthesis of the insect pheromone (2S,3R,7R)-3,7-dimethyltridec-2-yl acetate from racemic 3,4-dimethyl-γ-butyrolactone by diastereoselective chiral resolution
48. Recent Development of the Cyclopropanol Methodology for the Preparation of Methyl or Methylene Branched Natural Compounds
49. A cyclopropanol approach to the synthesis of the C13–C21 fragment of epothilones from diethyl (S)-malate
50. Differentiation between the ethoxycarbonyl groups in diethyl malate via their titanium-catalyzed reductive cyclopropanation with ethylmagnesium bromide and subsequent site-selective three-carbon ring cleavage
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