Search Results - "Chelouan, Ahmed"

Sulfinamide Phosphinates as Chiral Catalysts for the Enantioselective Organocatalytic Reduction of Imines by Chelouan, Ahmed, Recio, Rocío, Borrego, Lorenzo G, Álvarez, Eleuterio, Khiar, Noureddine, Fernández, Inmaculada

“…A new type of chiral sulfinamide phosphinate catalysts with up to three stereogenic centers, readily accessible from commercially available starting materials,…”
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Flexible C2-symmetric bis-sulfoxides as ligands in enantioselective 1,4-addition of boronic acids to electron-deficient alkenes by Khiar, Noureddine, Salvador, Álvaro, Valdivia, Victoria, Chelouan, Ahmed, Alcudia, Ana, Álvarez, Eleuterio, Fernández, Inmaculada

“…The application of acyclic C2-symmetric chelating bis-sulfoxide ligands in the Rh(I)-catalyzed enantioselective 1,4-addition of boronic acids to…”
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Stereoselective Synthesis of P-Stereogenic N-Phosphinyl Compounds by Chelouan, Ahmed, Recio, Rocío, Álvarez, Eleuterio, Khiar, Noureddine, Fernández, Inmaculada

“…A number of P‐stereogenic N‐phosphinyl compounds were stereoselectively prepared in good yields by a straightforward approach, thanks to the diversified and,…”
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Asymmetric Rhodium-Catalyzed 1,4- and 1,2-Additions of Arylboronic Acids to Activated Ketones in Water at Room Temperature Using a Mixed Sulfur-Olefin Ligand by Khiar, Noureddine, Valdivia, Victoria, Salvador, Álvaro, Chelouan, Ahmed, Alcudia, Ana, Fernández, Inmaculada

“…Performing catalytic enantioselective reactions, especially enantioselective carbon‐carbon bond forming reactions, in water without using any organic solvents…”
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Synthesis, X-Ray, Hirshfeld Surface, DFT, and Molecular Docking Investigation of N-(5H-Dibenzo[a,d][7]Annulen-5-Ylidene)-2-Methylpropane-2-Sulfinamide by Chelouan, Ahmed, Herrera, Alberto, Dorta, Romano, Filali, Insaf, Anouar, El Hassane

“…Dibenzocycloheptene antidepressants are tricyclic antidepressants (TCAs) that contain the dibenzocycloheptene moiety in their chemical structures. They are…”
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Stereochemical Stability of Planar-Chiral Benzazepine Tricyclics: Inversion Energies of P- and S-Alkene Ligands by Calderón, Jacqueline C., Herrera, Alberto, Heinemann, Frank W., Langer, Jens, Linden, Anthony, Chelouan, Ahmed, Grasruck, Alexander, Añez, Rafael, Clark, Timothy, Dorta, Romano

“…Inversion barriers ΔG‡ for planar chiral phosphine-alkene and sulfonamide-alkene hybrid ligands based on phenyl-dibenz[b,f]azepine have been determined by…”
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Tricyclic Sulfoxide–Alkene Hybrid Ligands for Chiral Rh(I) Complexes: The “Matched” Diastereomer Catalyzes Asymmetric C–C Bond Formations by Nikol, Alexander, Zhang, Ziyun, Chelouan, Ahmed, Falivene, Laura, Cavallo, Luigi, Herrera, Alberto, Heinemann, Frank W, Escalona, Ana, Frieß, Sibylle, Grasruck, Alexander, Dorta, Romano

“…Deprotonation of phenyldibenzo­[b,f]­tropylidene (8) with LDA/t-BuOK followed by quenching with either diastereomer of inexpensive glucose-based t-Bu-sulfinate…”
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Developing Chiral Dibenzazepine-Based S(O)-Alkene Hybrid Ligands for Rh(I) Complexation: Catalysts for the Base-Free Hayashi–Miyaura Reaction by Chelouan, Ahmed, Bao, Siyuan, Frieß, Sibylle, Herrera, Alberto, Heinemann, Frank W, Escalona, Ana, Grasruck, Alexander, Dorta, Romano

“…A stereodivergent synthesis using inexpensive reagents, i.e., dibenzazepine and glucose-derived t-Bu-sulfinate diastereomers (R S)-6 or (S S)-6, affords…”
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Enantioselective synthesis of 4-amino-3,4-dihydrocoumarins and their non-cyclic hydroxyester precursors: Biological evaluation for the treatment of glioblastoma multiforme by Borrego, Lorenzo G., Recio, Rocío, Moreno, Nazaret, Chelouan, Ahmed, Álvarez, Eleuterio, Sánchez-Coronilla, Antonio, Caro, Carlos, Pearson, John R., García-Martín, Maria Luisa, Khiar, Noureddine, Fernández, Inmaculada

“…The stereoselective addition of ethyl acetate enolate to the C═N bond of N-tert-butylsulfinylimines has been investigated in depth. A significant effect of the…”
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DMAP-Catalysed Sulfinylation of Diacetone-D-Glucose: Improved Method for the Synthesis of Enantiopure tert-Butyl Sulfoxides and tert-Butanesulfinamides by Chelouan, Ahmed, Recio, Rocío, Alcudia, Ana, Khiar, Noureddine, Fernández, Inmaculada

“…An improved method for the tert‐butanesulfinylation of diacetone glucose with tert‐butanesulfinyl chloride is reported. The method is based on a beneficial…”
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C 2‑Symmetric (SO)N(SO) Sulfoxide Pincer Complexes of Mg and Pd: Helicity Switch by Ambidentate S/O‑Coordination and Isolation of a Chiral Pd-Sulfenate by Seidel, Falk W, Frieß, Sibylle, Heinemann, Frank W, Chelouan, Ahmed, Scheurer, Andreas, Grasruck, Alexander, Herrera, Alberto, Dorta, Romano

“…Quinine-based (R)-tert-butylsulfinate 3 reacts with tris-lithiated bis-arylamide 2 to afford gram-quantities of optically pure (S*O)­N­(S*O) sulfoxide pincer…”
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Flexible C 2‑Symmetric Bis-Sulfoxides as Ligands in Enantioselective 1,4-Addition of Boronic Acids to Electron-Deficient Alkenes by Khiar, Noureddine, Salvador, Álvaro, Valdivia, Victoria, Chelouan, Ahmed, Alcudia, Ana, Álvarez, Eleuterio, Fernández, Inmaculada

“…The application of acyclic C 2-symmetric chelating bis-sulfoxide ligands in the Rh(I)-catalyzed enantioselective 1,4-addition of boronic acids to…”
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Enantiodivergent Approach to Trifluoromethylated Amines: A Concise Route to Both Enantiomeric Analogues of Calcimimetic NPS R-568 by Fernández, Inmaculada, Valdivia, Victoria, Alcudia, Ana, Chelouan, Ahmed, Khiar, Noureddine

“…Reported herein is a straightforward and enantiodivergent synthesis of both enantiomers of trifluoromethylated analogues of calcimimetic NPS R‐569 in a highly…”
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Developing P‑Stereogenic, Planar–Chiral P‑Alkene Ligands: Monodentate, Bidentate, and Double Agostic Coordination Modes on Ru(II) by Herrera, Alberto, Grasruck, Alexander, Heinemann, Frank W, Scheurer, Andreas, Chelouan, Ahmed, Frieß, Sibylle, Seidel, Falk, Dorta, Romano

“…10-Phenyl-5H-dibenz­[b,f]­azepine (5) is synthesized by Suzuki cross coupling of the protected bromo alkene 4 with PhB­(OH)2. 5 reacts with PCl3 to afford the…”
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