Search Results - "Dalko, Peter I"

From One-Photon to Two-Photon Probes: "Caged" Compounds, Actuators, and Photoswitches by Bort, Guillaume, Gallavardin, Thibault, Ogden, David, Dalko, Peter I.

“…Molecular systems that can be remotely controlled by light are gaining increasing importance in cell biology, physiology, and neurosciences because of the…”
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In the Golden Age of Organocatalysis by Dalko, Peter I., Moisan, Lionel

“…The term “organocatalysis” describes the acceleration of chemical reactions through the addition of a substoichiometric quantity of an organic compound. The…”
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Two-Photon “Caging” Groups: Effect of Position Isomery on the Photorelease Properties of Aminoquinoline-Derived Photolabile Protecting Groups by Tran, Christine, Gallavardin, Thibault, Petit, Morgane, Slimi, Riadh, Dhimane, Hamid, Blanchard-Desce, Mireille, Acher, Francine C, Ogden, David, Dalko, Peter I

“…High two-photon photolysis cross sections and water solubility of probes are important to avoid toxicity in biomedical applications of photolysis. Systematic…”
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Substitution Effect on the One- and Two-photon Sensitivity of DMAQ “Caging” Groups by Petit, Morgane, Tran, Christine, Roger, Thomas, Gallavardin, Thibault, Dhimane, Hamid, Palma-Cerda, Francisco, Blanchard-Desce, Mireille, Acher, Francine C, Ogden, David, Dalko, Peter I

“…The systematic SAR study of a “caging” group showed a strong influence of the position of the donor dimethylamino group on the efficiency of photolysis of the…”
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Concise synthesis of the (+/-)-Nb-desmethyl-meso-chimonanthine by Menozzi, Candice, Dalko, Peter I, Cossy, Janine

“…The first total synthesis of the bis-pyrroloindoline alkaloid (+/-)-Nb-desmethyl-meso-chimonanthine, having a pseudo C2-symmetry, was realised in a seven-step…”
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Olefin isomerization by a ruthenium carbenoid complex. Cleavage of allyl and homoallyl groups by Cadot, Christine, Dalko, Peter I, Cossy, Janine

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Enantioselective Organocatalysis by Dalko, Peter I., Moisan, Lionel

“…The last few years have witnessed a spectacular advancement in new catalytic methods based on metal‐free organic molecules. In many cases, these small…”
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Triphenylamine Sensitized 8‐Dimethylaminoquinoline: An Efficient Two‐Photon Caging Group for Intracellular Delivery by Rigault, Delphine, Nizard, Philippe, Daniel, Jonathan, Blanćhard‐Desce, Mireille, Deprez, Eric, Tauc, Patrick, Dhimane, Hamid, Dalko, Peter I.

“…Triphenylamine‐sensitized 8‐dimethylaminoquinoline (TAQ) probes showed fair two‐photon absorption and fragmentation cross sections in releasing kainate and…”
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Ruthenium-catalyzed asymmetric reduction of 1,3-diketones using transfer hydrogenation by Cossy, Janine, Eustache, Florence, Dalko, Peter I

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Synthesis of the C14−C25 Subunit of Bafilomycin A1 by Eustache, Florence, Dalko, Peter I, Cossy, Janine

“…The enantioselective synthesis of the C14−C25 subunit of bafilomycin A1 was realized in a convergent route. The sequence involves two dynamic kinetic…”
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Photoinduced Electron Transfer (PET)‐Mediated Fragmentation of Picolinium‐Derived Redox Probes by Dunkel, Petra, Barosi, Anna, Dhimane, Hamid, Maurel, François, Dalko, Peter I.

“…The photolysis of covalently linked N‐alkyl picolinium phenylacetate—carbazole dyads was analyzed experimentally and by using density functional theory (DFT)…”
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Quinoline‐Derived Two‐Photon Sensitive Quadrupolar Probes by Tran, Christine, Berqouch, Nawel, Dhimane, Hamid, Clermont, Guillaume, Blanchard‐Desce, Mireille, Ogden, David, Dalko, Peter I.

“…Quadrupolar probes derived from 8‐dimethylamino‐quinoline (8‐DMAQ) having a pegylated fluorene core were prepared and studied under “one‐photon” (λ=365 nm) and…”
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Quinoline-derived two-photon sensitive quadrupolar probes by Dunkel, Petra, Tran, Christine, Gallavardin, Thibault, Dhimane, Hamid, Ogden, David, Dalko, Peter I

“…The first quadrupolar 8-dimethylaminoquinoline-derived 6-(8-DMAQ-OAc)2 (1c) and 5-(8-DMAQ-OAc)2 (2c) photosensitive probes underwent photolysis under UV (365…”
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Efficient construction of a redox responsive thin polymer layer on glassy carbon and gold surfaces for voltage-gated delivery applications by Barosi, Anna, Berisha, Avni, Mangeney, Claire, Pinson, Jean, Dhimane, Hamid, Dalko, Peter I

“…A conceptually novel coating strategy is presented based on the selective oligomerisation of picolinium-derived end-tethered polymer chains. The remarkably…”
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Synthesis and activation of an iron oxide immobilized drug-mimicking reporter under conventional and pulsed X-ray irradiation conditions by Barosi, Anna, Dunkel, Petra, Guénin, Erwann, Lalatonne, Yoann, Zeitoun, Philippe, Fitton, Isabelle, Journé, Clément, Bravin, Alberto, Maruani, Antoine, Dhimane, Hamid, Motte, Laurence, Dalko, Peter I

“…An efficient nano-sized delivery system is presented here allowing the immobilized, picolinium-tethered organic ligand to be released by X-ray irradiation. A…”
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Studies on Enol Carbonate Chemistry: Stereoselective Construction of Vicinal Quaternary Benzylic Centers in the Bis-oxindole Series by I. Dalko, Peter, Menozzi, Candice, Cossy, Janine

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Asymmetric α Alkylation of Aldehydes: Efficiency with Elegance by Tak-Tak, Lotfi, Dhimane, Hamid, Dalko, Peter I.

“…Simple and practical: Direct intermolecular α alkylation reactions by SN1‐type transformations have been developed and offer flexible and robust routes to…”
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5-Aryl-dimethylamino quinoline-derived two-photon sensitive probes by Tran, Christine, Dunkel, Petra, Dhimane, Hamid, Ogden, David, Dalko, Peter I.

“…2-Hydroxymethylene-8-dimethylamino quinoline-(DMAQ) derived photosensitive probes were prepared and tested under 366 nm and 730 nm 150 fs pulsed ("two-photon")…”
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Hydrosilylation of Terminal Alkynes with Alkylidene Ruthenium Complexes and Silanes by Menozzi, Candice, Dalko, Peter I, Cossy, Janine

“…Ruthenium alkylidene complexes 1−3 mediate hydrosilylation of alkynes with silanes. When triethoxy- or triphenylsilanes are used as silylating agents, the…”
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X-ray Photolysis To Release Ligands from Caged Reagents by an Intramolecular Antenna Sensitive to Magnetic Resonance Imaging by Petit, Morgane, Bort, Guillaume, Doan, Bich-Thuy, Sicard, Cécile, Ogden, David, Scherman, Daniel, Ferroud, Clotilde, Dalko, Peter I.

“…Sensitive to light: A metal‐complex‐sensitized organic probe was developed to release ligands on excitation by X‐ray or γ irradiation (see picture). This…”
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