Search Results - "Torker Sebastian"

Asymmetric Induction and Enantiodivergence in Catalytic Radical C–H Amination via Enantiodifferentiative H-Atom Abstraction and Stereoretentive Radical Substitution by Lang, Kai, Torker, Sebastian, Wojtas, Lukasz, Zhang, X. Peter

“…Control of enantioselectivity remains a major challenge in radical chemistry. The emergence of metalloradical catalysis (MRC) offers a conceptually new…”
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Enantioselective Synthesis of Trisubstituted Allenyl–B(pin) Compounds by Phosphine–Cu-Catalyzed 1,3-Enyne Hydroboration. Insights Regarding Stereochemical Integrity of Cu–Allenyl Intermediates by Huang, Youming, del Pozo, Juan, Torker, Sebastian, Hoveyda, Amir H

“…Catalytic enantio­selective boron–hydride additions to 1,3-enynes, which afford allenyl–B­(pin) (pin = pinacolato) products, are disclosed. Transformations are…”
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Delayed catalyst function enables direct enantioselective conversion of nitriles to NH2-amines by Zhang, Shaochen, del Pozo Juan, Romiti Filippo, Mu Yucheng, Torker Sebastian, Hoveyda, Amir H

“…Amines emerge, as copper bides its timeConcurrent operation of two or more catalytic cycles requires a delicate balance of relative rates. Zhang et al…”
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Versatile Homoallylic Boronates by Chemo‐, SN2′‐, Diastereo‐ and Enantioselective Catalytic Sequence of Cu−H Addition to Vinyl‐B(pin)/Allylic Substitution by Lee, Jaehee, Torker, Sebastian, Hoveyda, Amir H.

“…A highly chemo‐, diastereo‐ and enantioselective catalytic method that efficiently combines a silyl hydride, vinyl‐B(pin) (pin=pinacolato) and…”
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Catalytic diastereo- and enantioselective additions of versatile allyl groups to N–H ketimines by Jang, Hwanjong, Romiti, Filippo, Torker, Sebastian, Hoveyda, Amir H.

“…There are many biologically active organic molecules that contain one or more nitrogen-containing moieties, and broadly applicable and efficient catalytic…”
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C–H Functionalization of Amines via Alkene-Derived Nucleophiles through Cooperative Action of Chiral and Achiral Lewis Acid Catalysts: Applications in Enantioselective Synthesis by Shang, Ming, Chan, Jessica Z, Cao, Min, Chang, Yejin, Wang, Qifan, Cook, Brennan, Torker, Sebastian, Wasa, Masayuki

“…Catalytic transformations of α-amino C–H bonds to afford valuable enantiomerically enriched α-substituted amines, entities that are prevalent in…”
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Catalytic Enantioselective Conjugate Additions of (pin)B-Substituted Allylcopper Compounds Generated in situ from Butadiene or Isoprene by Li, Xiben, Meng, Fanke, Torker, Sebastian, Shi, Ying, Hoveyda, Amir H.

“…Multicomponent catalytic enantioselective transformations that entail the combination of butadiene or isoprene (common feedstock), an enoate (prepared in one…”
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Readily Accessible and Easily Modifiable Ru-Based Catalysts for Efficient and Z‑Selective Ring-Opening Metathesis Polymerization and Ring-Opening/Cross-Metathesis by Khan, R. Kashif M, Torker, Sebastian, Hoveyda, Amir H

“…Rationally designed Ru-based catalysts for efficient Z-selective olefin metathesis are featured. The new complexes contain a dithiolate ligand and can be…”
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Catalytic enantioselective 1,6-conjugate additions of propargyl and allyl groups by Meng, Fanke, Li, Xiben, Torker, Sebastian, Shi, Ying, Shen, Xiao, Hoveyda, Amir H.

“…A difficult synthesis is described that uses an organocopper catalyst and commercially available starting materials to give high yield and the mechanics of the…”
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Sulfonate N‐Heterocyclic Carbene–Copper Complexes: Uniquely Effective Catalysts for Enantioselective Synthesis of C−C, C−B, C−H, and C−Si Bonds by Hoveyda, Amir H., Zhou, Yuebiao, Shi, Ying, Brown, M. Kevin, Wu, Hao, Torker, Sebastian

“…A copper‐based complex that contains a sulfonate N‐heterocyclic carbene ligand was first reported 15 years ago. Since then, these organometallic entities have…”
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High-value alcohols and higher-oxidation-state compounds by catalytic Z-selective cross-metathesis by Koh, Ming Joo, Khan, R. Kashif M., Torker, Sebastian, Yu, Miao, Mikus, Malte S., Hoveyda, Amir H.

“…A ruthenium–disulfide catalyst is presented that is effective in generating compounds of medical and industrial utility (alcohols that contain a phenol, an…”
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Racemic Vinylallenes in Catalytic Enantioselective Multicomponent Processes: Rapid Generation of Complexity through 1,6‐Conjugate Additions by Huang, Youming, Torker, Sebastian, Li, Xinghan, del Pozo, Juan, Hoveyda, Amir H.

“…Racemic vinylallenes are shown to be effective substrates for catalytic multicomponent diastereo‐ and enantioselective 1,6‐conjugate addition of…”
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Catalytic enantioselective addition of organoboron reagents to fluoroketones controlled by electrostatic interactions by Lee, KyungA, Silverio, Daniel L., Torker, Sebastian, Robbins, Daniel W., Haeffner, Fredrik, van der Mei, Farid W., Hoveyda, Amir H.

“…Organofluorine compounds are central to modern chemistry, and broadly applicable transformations that generate them efficiently and enantioselectively are in…”
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Simple organic molecules as catalysts for enantioselective synthesis of amines and alcohols by Silverio, Daniel L., Torker, Sebastian, Pilyugina, Tatiana, Vieira, Erika M., Snapper, Marc L., Haeffner, Fredrik, Hoveyda, Amir H.

“…A set of small organic molecules catalyse reactions of unsaturated organoboron reagents with imines and carbonyls to produce amines and alcohols in high…”
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Gas-Phase Thermochemistry of Ruthenium Carbene Metathesis Catalysts by Torker, Sebastian, Merki, Daniel, Chen, Peter

“…Quantitative energy-resolved collision-induced dissociation cross-sections by tandem ESI-MS provide absolute thermochemical data for phosphine binding energies…”
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Reactivity and selectivity differences between catecholate and catechothiolate Ru complexes. Implications regarding design of stereoselective olefin metathesis catalysts by Khan, R Kashif M, Torker, Sebastian, Hoveyda, Amir H

“…The origins of the unexpected finding that Ru catechothiolate complexes, in contrast to catecholate derivatives, promote exceptional Z-selective olefin…”
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Broadly Applicable Z- and Diastereoselective Ring-Opening/Cross-Metathesis Catalyzed by a Dithiolate Ru Complex by Koh, Ming Joo, Khan, R. Kashif M., Torker, Sebastian, Hoveyda, Amir H.

“…A broadly applicable Ru‐catalyzed protocol for Z‐selective ring‐opening/cross‐metathesis (ROCM) is disclosed. In addition to reactions relating to terminal…”
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Controllable ROMP Tacticity by Harnessing the Fluxionality of Stereogenic-at-Ruthenium Complexes by Mikus, Malte S., Torker, Sebastian, Hoveyda, Amir H.

“…Readily accessible and easy‐to‐handle Ru complexes capable of generating all‐Z polynorbornene and polynorbornadiene by ring‐opening metathesis polymerization…”
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Preparation of Macrocyclic Z‑Enoates and (E,Z)- or (Z,E)‑Dienoates through Catalytic Stereoselective Ring-Closing Metathesis by Zhang, Hanmo, Yu, Elsie C, Torker, Sebastian, Schrock, Richard R, Hoveyda, Amir H

“…The first examples of c​atalyst-controlled stereo­selective macrocyclic ring-closing metathesis reactions that generate Z-enoates as well as (E,Z)- or…”
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Electronically Activated Organoboron Catalysts for Enantioselective Propargyl Addition to Trifluoromethyl Ketones by Mszar, Nicholas W., Mikus, Malte S., Torker, Sebastian, Haeffner, Fredrik, Hoveyda, Amir H.

“…A broadly applicable, practical, scalable, efficient and highly α‐ and enantioselective method for addition of a silyl‐protected propargyl moiety to…”
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