372 results on '"Yasumasa Hamada"'
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2. Asymmetric Formal Synthesis of (+)-Catharanthine via Desymmetrization of Isoquinuclidine
3. Enantioselective formal synthesis of (−)-aurantioclavine using Pd-catalyzed cascade cyclization and organocatalytic asymmetric aziridination
4. Synthesis of Spirocyclic and Fused Cyclic Compounds by Transition-Metal-Catalyzed Intramolecular Friedel–Crafts-Type Reactions of Phenol Derivatives
5. Synthetic Study of Pactamycin: Enantioselective Construction of the Pactamycin Core with Five Contiguous Stereocenters
6. Formal enantioselective synthesis of (−)-allosamizoline using chiral diamine-catalyzed asymmetric aziridination of cyclic enones
7. Formal amide insertion strategy for the synthesis of anatoxin-a using rhodium catalysis
8. Platinum-Catalyzed Friedel-Crafts-Type C−H Coupling-Allylic Amination Cascade to Synthesize 3,4-Fused Tricyclic Indoles
9. Computational studies of the mechanism of Pd-Catalyzed Intramolecular Friedel–Crafts allylic alkylation of phenols
10. Diastereoselective Synthesis of Trisubstituted Cyclopropanes by Palladium-Catalyzed Intramolecular Allylic Alkylation of α-Aryl Esters
11. Enantioselective Total Synthesis of (+)-Gephyrotoxin 287C
12. Flow Pattern Transition of Fine Cohesive Powders in a Gas-Solid Fluidized Bed under Mechanical Vibrating Conditions
13. Synthesis of Spirocyclic or Fused Cyclic Compounds Using Transition Metal-Catalyzed Dearomatization of Phenols
14. Diastereoselective synthesis of quinolizidin-4-one and indolizidin-3-one derivatives with a spirocyclic motif via cascade cyclization using a gold(I)/Brønsted acid relay catalysis
15. Synthetic Study of Dragmacidin E: Construction of the Core Structure Using Pd-Catalyzed Cascade Cyclization and Rh-Catalyzed Aminoacetoxylation
16. Enantioselective synthesis of (R)-Sumanirole using organocatalytic asymmetric aziridination of an α,β-unsaturated aldehyde
17. Gold-Catalyzed Carbocyclization of Phenols with a Terminal Alkyneviaan Intramolecularipso-Friedel-Crafts Alkenylation
18. Synthesis of fused-tricyclic indole derivatives through an acid-promoted skeletal rearrangement
19. Diastereo- and Enantioselectiveanti-Selective Hydrogenation of α-Amino-β-keto Ester Hydrochlorides and Related Compounds Using Transition-Metal-Chiral-Bisphosphine Catalysts
20. Formal meta-specific intramolecular Friedel–Crafts allylic alkylation of phenols through a spirocyclization–dienone–phenol rearrangement cascade
21. Synthesis of 4,5-fused tricyclic quinolines via an acid-promoted intramolecular Friedel–Crafts allenylation of aniline derivatives
22. Palladium-Catalyzed Intramolecularipso-Friedel-Crafts Allylic Alkylation of PhenolsviaArylative Activation of Allenes
23. Enantioselective total syntheses of cedrelin A and methylated paralycolin B using Pd-catalyzed asymmetric intramolecular Friedel–Crafts allylic alkylation of phenols
24. Synthesis of spiro[4.5]cyclohexadienones with an allene motif via a base-promoted intramolecular ipso-Friedel–Crafts addition of phenols to propargyl bromides
25. A novel method for synthesizing 3-arylpyrrolidine and 4-arylpiperidine derivatives through an acid-promoted skeletal rearrangement
26. Palladium-Catalyzed Intramolecularipso-Friedel-Crafts Alkylation of Phenols and Indoles: Rearomatization-Assisted Oxidative Addition
27. Efficient Diastereoselective Synthesis of (2R,3R,4R)-2-Amino-3-hydroxy-4,5-dimethylhexanoic Acid, the Lactone Linkage Unit of Homophymine A
28. Dearomatization via Transition-Metal-Catalyzed Allylic Substitution Reactions
29. ChemInform Abstract: Diastereoselective Synthesis of Trisubstituted Cyclopropanes by Palladium-Catalyzed Intramolecular Allylic Alkylation of α-Aryl Esters
30. ChemInform Abstract: General Approach to Nitrogen-Bridged Bicyclic Frameworks by Rh-Catalyzed Formal Carbenoid Insertion into an Amide C-N Bond
31. ChemInform Abstract: Diastereoselective Synthesis of Quinolizidin-4-one and Indolizidin-3-one Derivatives with a Spirocyclic Motif via Cascade Cyclization Using a Gold(I)/Broensted Acid Relay Catalysis
32. Enantioselective construction of all-carbon quaternary spirocenters through a Pd-catalyzed asymmetric intramolecular ipso-Friedel–Crafts allylic alkylation of phenols
33. Asymmetric Synthesis of 2-Substituted Hexahydroquinolin-4-ones Using a Pd-Catalyzed Asymmetric Allylic Amination and Intramolecular Mannich Reaction: Catalytic Asymmetric Synthesis of 2-epi-cis-195A
34. Novel chiral hydrogen bond donor catalysts based on a 4,5-diaminoxanthene scaffold: application to enantioselective conjugate addition of 1,3-dicarbonyl compounds to nitroalkenes
35. Development of Transition Metal-Catalyzed Asymmetric Reactions Using Chiral Diaminophosphine Oxide Preligands and Their Applications
36. Catalytic asymmetric synthesis using P-chiral diaminophosphine oxide preligands: DIAPHOXs
37. Asymmetric Synthesis of 2-Substituted Dihydrobenzofurans and 3-Hydroxydihydrobenzopyrans through the Enantioselective Epoxidation of O-Silyl-Protected ortho-Allylphenols
38. Catalytic Asymmetric Total Synthesis of Tangutorine
39. Reagent-controlled diastereoselective synthesis of (2S,3R)- and (2R,3R)-2,3-diaminobutanoic acid derivatives using proline-catalyzed α-hydrazination reaction
40. Homogeneous Chiral Nickel-Catalyzed Asymmetric Hydrogenation of Substituted Aromaticα-Aminoketone Hydrochlorides through Dynamic Kinetic Resolution
41. Palladium-Catalyzed Asymmetric Allylic Alkylation of 2,3-Allenyl Acetates Using a Chiral Diaminophosphine Oxide
42. Enantioselective aziridination reaction of α,β-unsaturated aldehydes using an organocatalyst and tert-butyl N-arenesulfonyloxycarbamates
43. Direct anti-selective asymmetric hydrogenation of α-amino-β-keto esters through dynamic kinetic resolution using Ru-axially chiral phosphine catalysts—stereoselective synthesis of anti-β-hydroxy-α-amino acids
44. Enantioselective synthesis of martinelline chiral core and its diastereomer using asymmetric tandem Michael–aldol reaction
45. Pd-catalyzed asymmetric allylic aminations with aromatic amine nucleophiles using chiral diaminophosphine oxides: DIAPHOXs
46. Pd-catalyzed asymmetric allylic alkylation of 2-substituted cycloalkenyl carbonates using a chiral diaminophosphine oxide: (S,RP)-Ph-DIAPHOX
47. Catalytic anti-Selective Asymmetric Hydrogenation of .ALPHA.-Amino-.BETA.-Keto Esters through Dynamic Kinetic Resolution
48. Synthesis of novel P-stereogenic phenylphosphonamides and their application to Lewis base-catalyzed asymmetric allylation of benzaldehyde
49. Synthesis of 2,6-dimethyl-9-aryl-9-phosphabicyclo[3.3.1]nonanes: their application to asymmetric synthesis of chiral tetrahydroquinolines and relatives
50. General Approach to Nitrogen-Bridged Bicyclic Frameworks by Rh-Catalyzed Formal Carbenoid Insertion into an Amide C-N Bond
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