117 results on '"Ortuno, R."'
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2. ChemInform Abstract: Diels-Alder Cycloadditions of Electron-Rich, Electron-Deficient, and Push-Pull Dienes with Cyclic Dienophiles: High-Pressure-Induced Reactions and Theoretical Calculations.
3. ChemInform Abstract: General Synthesis of 1-Oxaspiro(4.5)decan-2-ones and 1-Oxaspiro(4.5) decanes from 5-Methylene-2(5H)-furanone.
4. ChemInform Abstract: Diastereofacial Selectivity in Uncatalyzed Diels-Alder Cycloadditions Involving α,β-Unsaturated Esters and Lactones with Stereogenic Centers Containing Oxygen Functionalities.
5. ChemInform Abstract: Stereoselective Synthesis of 4,5-Dihydroxy-D-erythro- and 4,5- Dihydroxy-D-threo-L-norvaline from D-Ribonolactone.
6. ChemInform Abstract: Investigations of the Formation of Cyclic Acetal and Ketal Derivatives of D-Ribono-1,4-lactone and 2-Deoxy-D-ribono-1,4-lactone.
7. ChemInform Abstract: A Versatile and Highly Stereocontrolled Synthetic Approach to Homochiral Polyfunctional Norbornene and Norbornane Derivatives.
8. ChemInform Abstract: Synthetic Approaches to Either Homochiral or Achiral Derivatives of 3- Hydroxy-2(5H)-furanone (Isotetronic Acid).
9. ChemInform Abstract: Lewis Acid Catalyzed Diels-Alder Cycloadditions of Chiral Butenolides to Cyclopentadiene: endo/exo Stereoselectivity.
10. ChemInform Abstract: Stereocontrolled Synthetic Entries to Homochiral Hydroxylated Norbornene Derivatives. Formal Synthesis of Some Carbocyclic Nucleosides.
11. ChemInform Abstract: Stereoselective Synthesis of New Homochiral Polyfunctional Side-Chain Cyclopentane Derivatives.
12. ChemInform Abstract: 1,2-Dibromoethane in the Synthesis of 2-Bromoesters: Bromination vs Alkylation.
13. ChemInform Abstract: Stereoselective Synthesis of Enantiopure Cyclopropane Didehydroamino Acid Derivatives: (-)-(Z)-2-Benzyloxycarbonylamino-4,5-cyclopropane-2- hexenodioic Acid Dimethyl Ester.
14. ChemInform Abstract: Enantioselective Synthesis of Chiral Polyfunctional Cyclopentane Derivatives: Epoxy Esters, Hydroxy Esters, and Hydroxy Amino Esters.
15. ChemInform Abstract: Enantioselective Total Syntheses of (-)-allo-Coronamic Acid, (-)-(Z)-2, 3-Methanohomoserine, and (2S,3R)-Cbz-cyclo-Asp-OMe.
16. ChemInform Abstract: Enantioselective Total Syntheses of Cyclopropane Amino Acids: Natural Products and Protein Methanologs.
17. ChemInform Abstract: Enantioselective Synthesis of Novel Homochiral α-Substituted (S)- Isoserine Derivatives. Incorporation of this Amino Acid in a Highly Conformationally Constrained Dipeptide Surrogate.
18. ChemInform Abstract: Some Versatile and Useful Strategies for the Asymmetric Synthesis of Chiral Polyfunctional Carbocyclic Derivatives
19. ChemInform Abstract: Unusual Palladium-Mediated Methylene-Addition to the Carbonyl of a Homochiral Polyfunctionalized Cyclohexenone, and Intramolecular Oxirane-Ring Opening. Efficient Synthesis of Novel Enantiopure 3a,4,5, 7a-Tetrahydrobenzoxazole Derivat
20. ChemInform Abstract: A Biradical Mechanism in the Diels-Alder Reactions of 5-Methylene-2(5H)-furanones: Experimental Evidence and Theoretical Rationalization.
21. ChemInform Abstract: Stereoselective Synthesis of Novel Cyclobutane Dehydro Amino Acids from (+)-α-Pinene.
22. ChemInform Abstract: Controlling π‐Facial Diastereoselectivity in the 1,3‐Dipolar Cycloadditions of Diazomethane to Chiral Pentenoates and Furanones: Enantioselective Stereodivergent Syntheses of Cyclopropane Hydroxy Acids and Didehydro Amino Acids.
23. ChemInform Abstract: A Synthetic Approach to a Novel Class of Enantiopure Cyclopentyl Carbocyclic Nucleosides and Related Compounds.
24. ChemInform Abstract: First Enantioselective Synthesis of (‐)‐(Z)‐2,3‐Methano‐L‐glutamic Acid.
25. ChemInform Abstract: High‐Pressure and Thermally Induced Asymmetric Diels‐Alder Cycloadditions of Heterosubstituted Dienes to Homochiral α,β ‐Didehydro Amino Acid Derivatives.
26. ChemInform Abstract: A Novel and Efficient Synthetic Approach to Polyfunctional Bicyclo(3.1. 0)hexane Derivatives.
27. ChemInform Abstract: Thermal 1,2‐ and 1,4‐Cycloadditions of Butadiene to 3‐Substituted 5‐ Methylene‐2(5H)‐furanones: Evidence for a Biradical Mechanism in Some Diels‐Alder Reactions.
28. ChemInform Abstract: Stereocontrolled Introduction of Nitrogen Functionalization in D‐ Ribonolactone Chiral Templates: Synthesis of Non‐Protein Amino Acids
29. ChemInform Abstract: The Bromination of β‐Angelica Lactone Revisited: Synthesis of New 3‐Bromo‐5‐methylene‐ and 3‐Bromo‐5‐methyl‐2(5H)‐furanones.
30. ChemInform Abstract: Highly Efficient and Stereocontrolled Synthetic Route to Enantiopure ACC Derivatives. Synthesis of (+)‐N‐Benzyloxycarbonyl‐γ,δ‐ dehydro‐allo‐coronamic Acid Methyl Ester.
31. ChemInform Abstract: Synthesis of 5,5‐Disubstituted 2(3H)‐Dihydrofuranones Containing Side‐ Chain Carbonyl Functions, and Some Derivatives.
32. ChemInform Abstract: Unsaturated Acid Derivatives in Diels‐Alder Cycloadditions: Effect of the Extended or Cross Conjugation.
33. ChemInform Abstract: Enantioselective Production of Homochiral (+)‐(1R,2S,3S,4S)‐ and (‐)‐( 1S,2R,3R,4R)‐Bicyclo(2.2.1)heptane‐2,3‐dicarboxylic Acid, 2‐Methyl Esters. Formal Synthesis of the TXA2 Antagonist S‐1452.
34. ChemInform Abstract: Lewis Acid Catalyzed Diels‐Alder Additions of Cyclopentadiene to Methyl (E)‐ and (Z)‐(S)‐4,5‐Di‐O‐isopropylidenepent‐2‐enoates: Rate and Stereoselectivity.
35. ChemInform Abstract: An Efficient and Concise Entry to (‐)‐4,5‐Dihydroxy‐D‐threo‐L‐ norvaline (I). Formal Synthesis of Clavalanine (II).
36. ChemInform Abstract: Diels‐Alder Reactions of Protoanemonin with Heterosubstituted Dienes. Synthesis of Polyfunctional Oxaspiro(4.5)decanes.
37. ChemInform Abstract: 5-Methylene-2(5H)-furanone in Diels-Alder Reactions with Cyclic Dienes: endo/exo Selectivity.
38. ChemInform Abstract: 5‐Methylene‐2(5H)‐furanone as a Dienophile in Diels‐Alder Cycloadditions: Site Selectivity and Regioselectivity.
39. ChemInform Abstract: Enantioselective Synthesis of Hydroxy α-Amino Acids. (-)-erythro- and (-)-threo-γ-Hydroxynorvalines.
40. ChemInform Abstract: Studies on Structurally Simple α,β‐Butenolides. Part 9. A Short and Efficient Synthesis of E‐5‐Ethylidene‐2(5H)‐furanone.
41. ChemInform Abstract: Stereocontrolled Synthesis of (3S,4S,5S)-3-Alkyl-4-hydroxy-5-methyl-2(3H)-dihydrofuranones and Derivatives. Configurational Assignment of Some Clinostemon mahuba and Plexaura flava Metabolites.
42. ChemInform Abstract: Diels-Alder Cycloadditions of Chiral Butenolides with Cyclopentadiene: endo/exo Selectivity.
43. ChemInform Abstract: Chiral Butenolides in Diels‐Alder Cycloadditions with Isoprene and Cyclopentadiene.
44. ChemInform Abstract: Alkylation of (1S,2R,5R,6S,7R)- and (1R,2R,5R,6S,7S)-5-Methyl-4-oxatricyclo(5.2.1.02,6)-8-decen-3-one. Application to the Synthesis of (R)-3-Alkyl-5-methyl-2(5H)-furanones.
45. ChemInform Abstract: β-Angelica Lactone Epoxide: Chemical Behaviour and Some Synthetic Applications.
46. ChemInform Abstract: Di‐ and Trisubstituted γ‐Lactones. Conformational Study by Molecular Mechanics Calculations and Coupling Constant Analysis.
47. ChemInform Abstract: Diels‐Alder Cycloadditions of Chiral Butenolides with Butadiene and Isoprene: Diastereofacial Selectivity and Regioselectivity.
48. ChemInform Abstract: Reactions of Some D-Ribonolactone Derivatives with Alkyl Cuprates. Synthesis of (+)-Eldanolide and (+)-trans-Cognac Lactone.
49. ChemInform Abstract: Interpretation of Conjugated Oxiranes Behavior Toward Nucleophiles.
50. ChemInform Abstract: High Pressure‐Induced Diels‐Alder Cycloadditions of Butenolides to Electron‐Rich Dienes.
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