Search Results - "Dobrovetsky, Roman"

Redox-switchable carboranes for uranium capture and release by Keener, Megan, Hunt, Camden, Carroll, Timothy G., Kampel, Vladimir, Dobrovetsky, Roman, Hayton, Trevor W., Ménard, Gabriel

“…The uranyl ion (UO 2 2+ ; U( vi ) oxidation state) is the most common form of uranium found in terrestrial and aquatic environments and is a central component…”
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B(C6F5)3‐Catalyzed Selective Chlorination of Hydrosilanes by Chulsky, Karina, Dobrovetsky, Roman

“…The chlorination of Si−H bonds often requires stoichiometric amounts of metal salts in conjunction with hazardous reagents, such as tin chlorides, Cl2, and…”
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Stoichiometric Metal-Free Reduction of CO in Syn-Gas by Dobrovetsky, Roman, Stephan, Douglas W

“…Reaction of a 2:1 mixture of B(C6F5)3 and tBu3P with syn-gas results in the stoichiometric reduction of CO to give a formyl derivative which reacts further via…”
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Metal-Free Catalytic Reductive Cleavage of Enol Ethers by Chulsky, Karina, Dobrovetsky, Roman

“…In contrast to the well-known reductive cleavage of the alkyl–O bond, the cleavage of the alkenyl–O bond is much more challenging especially using metal-free…”
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Lewis Acidity of Organofluorophosphonium Salts: Hydrodefluorination by a Saturated Acceptor by Caputo, Christopher B., Hounjet, Lindsay J., Dobrovetsky, Roman, Stephan, Douglas W.

“…Prototypical Lewis acids, such as boranes, derive their reactivity from electronic unsaturation. Here, we report the Lewis acidity and catalytic application of…”
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Metal-free transfer hydrogenation of olefins via dehydrocoupling catalysis by Pérez, Manuel, Caputo, Christopher B., Dobrovetsky, Roman, Stephan, Douglas W.

“…A major advance in main-group chemistry in recent years has been the emergence of the reactivity of main-group species that mimics that of transition metal…”
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Olefin Isomerization and Hydrosilylation Catalysis by Lewis Acidic Organofluorophosphonium Salts by Pérez, Manuel, Hounjet, Lindsay J, Caputo, Christopher B, Dobrovetsky, Roman, Stephan, Douglas W

“…Organofluorophosphonium salts of the formula [(C6F5)3–x Ph x PF][B(C6F5)4] (x = 0, 1) exhibit Lewis acidity derived from a low-lying σ* orbital at P opposite…”
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pH‐Responsive Pillar[6]arene‐based Water‐Soluble Supramolecular Hexagonal Boxes by Kaizerman‐Kane, Dana, Hadar, Maya, Tal, Noam, Dobrovetsky, Roman, Zafrani, Yossi, Cohen, Yoram

“…We describe the preparation of the first water‐soluble pH‐responsive supramolecular hexagonal boxes (SHBs) based on multiple charge‐assisted hydrogen bonds…”
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Benzylic Dehydroxylation of Echinocandin Antifungal Drugs Restores Efficacy against Resistance Conferred by Mutated Glucan Synthase by Logviniuk, Dana, Jaber, Qais Z, Dobrovetsky, Roman, Kozer, Noga, Ksiezopolska, Ewa, Gabaldón, Toni, Carmeli, Shmuel, Fridman, Micha

“…Each year, infections caused by fungal pathogens claim the lives of about 1.6 million people and affect the health of over a billion people worldwide. Among…”
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1,2-Diphosphonium Dication: A Strong P‑Based Lewis Acid in Frustrated Lewis Pair (FLP)-Activations of B–H, Si–H, C–H, and H–H Bonds by Holthausen, Michael H, Bayne, Julia M, Mallov, Ian, Dobrovetsky, Roman, Stephan, Douglas W

“…A highly Lewis acidic diphosphonium dication [(C10H6)­(Ph2P)2]2+ (1), in combination with a Lewis basic phosphine, acts as a purely phosphorus-based frustrated…”
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Synthesis of Silenyllithiums Li(R′3Si)SiC(SiR3)(1-Ad) via Transient Silyne–Silylidene Intermediates by Zborovsky, Lieby, Dobrovetsky, Roman, Botoshansky, Mark, Bravo-Zhivotovskii, Dmitry, Apeloig, Yitzhak

“…The first two lithium silenides, Li­(tBu2MeSi)­SiC­(SiMetBu2)­(1-Ad) (1) and Li­(tBuMe2Si)­SiC­(SiMetBu2)­(1-Ad) (2) were prepared by THF addition to the…”
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Radical Activation of SiH Bonds by Organozinc and Silylzinc Reagents: Synthesis of Geminal Dizinciosilanes and Zinciolithiosilanes by Dobrovetsky, Roman, Kratish, Yosi, Tumanskii, Boris, Botoshansky, Mark, Bravo-Zhivotovskii, Dmitry, Apeloig, Yitzhak

“…SiH bonds can be activated by organozinc and silylzinc compounds in the presence of minute amounts of radical initiators such as tBu2Hg or AIBN, yielding…”
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Synthesis, Isolation, and Characterization of 1,1-DiGrignard and 1,1-Dizincio Silanes by Dobrovetsky, Roman, Bravo-Zhivotovskii, Dmitry, Tumanskii, Boris, Botoshansky, Mark, Apeloig, Yitzhak

“…Two metals are better than one: A cyclic 1,1‐dimagnesiosilane, a 1,1‐di(chloromagnesio)silane, and a 1,1‐di(chlorozincio)silane have been synthesized using…”
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pH‐Responsive Pillar[6]arene‐based Water‐Soluble Supramolecular Hexagonal Boxes by Kaizerman‐Kane, Dana, Hadar, Maya, Tal, Noam, Dobrovetsky, Roman, Zafrani, Yossi, Cohen, Yoram

“…We describe the preparation of the first water‐soluble pH‐responsive supramolecular hexagonal boxes (SHBs) based on multiple charge‐assisted hydrogen bonds…”
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Synthesis and Isolation of a Metal-Substituted Bis-silene by Bravo-Zhivotovskii, Dmitry, Dobrovetsky, Roman, Nemirovsky, Dmitry, Molev, Victoria, Bendikov, Michael, Molev, Gregory, Botoshansky, Mark, Apeloig, Yitzhak

“…Si, Si: The reaction of bis(lithiosilyl)mercury with R3Si=iPr3Si with two equivalents of 1‐adamantoyl chloride gave, by thermal Brook rearrangement, the first…”
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Highly Chemoselective Zn+2‐Catalyzed Hydrosilylation of Alkynes by Raz, Itay, Dobrovetsky, Roman

“…Hydrosilylation of C=C double and C≡C triple bonds is one of the most widely used processes in organosilicon chemistry, mostly catalyzed by Pt‐based complexes…”
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Catalytic Reduction of CO2 to CO by Using Zinc(II) and In Situ Generated Carbodiphosphoranes by Dobrovetsky, Roman, Stephan, Douglas W.

“…Playing it ‘CO'ol: CO2 is catalytically reduced to CO with concurrent oxidation of phosphine to phosphineoxide by using an in situ generated catalyst derived…”
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The Role of the Fluoro–Hydrido–Phosphorane Intermediate in Catalytic Hydrosilylation of Acetophenone: Computational Study by Kostenko, Arseni, Dobrovetsky, Roman

“…The fluorophosphonium cation [(C6F5)3PF]+ (1) is used as a catalyst in many chemical transformations including the hydrosilylation of ketones. In these…”
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Dual Reactivity of a Geometrically Constrained Phosphenium Cation by Volodarsky, Solomon, Bawari, Deependra, Dobrovetsky, Roman

“…A geometrically constrained phosphenium cation in bis(pyrrolyl)pyridine based NNN pincer type ligand (1+) was synthesized, isolated and its preliminary…”
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Metallomimetic Chemistry of a Cationic, Geometrically Constrained Phosphine in the Catalytic Hydrodefluorination and Amination of Ar–F Bonds by Chulsky, Karina, Malahov, Irina, Bawari, Deependra, Dobrovetsky, Roman

“…The synthesis, isolation, and reactivity of a cationic, geometrically constrained σ3-P compound in the hexaphenyl-carbodiphosphoranyl-based pincer-type ligand…”
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