Search Results - "Paull, Daniel H"

Catalytic, asymmetric reactions of ketenes and ketene enolates by Paull, Daniel H., Weatherwax, Anthony, Lectka, Thomas

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Bifunctional Catalyst Promotes Highly Enantioselective Bromolactonizations To Generate Stereogenic C–Br Bonds by Paull, Daniel H, Fang, Chao, Donald, James R, Pansick, Andrew D, Martin, Stephen F

“…A novel bifunctional catalyst derived from BINOL has been developed that promotes the highly enantioselective bromolactonizations of a number of structurally…”
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Co-Occurrence of Triclocarban and Triclosan in U.S. Water Resources by Halden, Rolf U, Paull, Daniel H

“…Triclocarban (TCC) and triclosan (TCS) are antimicrobial additives in personal care products. Whereas TCS has been studied extensively, the environmental fate…”
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Enantioselective Halolactonization Reactions using BINOL-Derived Bifunctional Catalysts: Methodology, Diversification, and Applications by Klosowski, Daniel W, Hethcox, J. Caleb, Paull, Daniel H, Fang, Chao, Donald, James R, Shugrue, Christopher R, Pansick, Andrew D, Martin, Stephen F

“…A general protocol is described for inducing enantioselective halolactonizations of unsaturated carboxylic acids using novel bifunctional organic catalysts…”
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Enantioselective Iodolactonization of Disubstituted Olefinic Acids Using a Bifunctional Catalyst by Fang, Chao, Paull, Daniel H, Hethcox, J. Caleb, Shugrue, Christopher R, Martin, Stephen F

“…The enantioselective iodolactonizations of a series of diversely substituted olefinic carboxylic acids are promoted by a BINOL-derived, bifunctional catalyst…”
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Enantioselective Formal Total Syntheses of Didehydrostemofoline and Isodidehydrostemofoline through a Catalytic Dipolar Cycloaddition Cascade by Fang, Chao, Shanahan, Charles S., Paull, Daniel H., Martin, Stephen F.

“…Sweet to the core: Enantioselective formal total syntheses of the title compounds were accomplished in 24 steps from 2‐deoxy‐D‐ribose. The synthesis features a…”
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Catalytic, Enantioselective Bifunctional Inverse Electron Demand Hetero-Diels−Alder Reactions of Ketene Enolates and o-Benzoquinone Diimides by Abraham, Ciby J, Paull, Daniel H, Scerba, Michael T, Grebinski, James W, Lectka, Thomas

“…In this Communication, we report a system in which an achiral Lewis acid (activating the diene) works in concert with a chiral nucleophile (dienophile) to…”
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Analysis of Triclocarban in Aquatic Samples by Liquid Chromatography Electrospray Ionization Mass Spectrometry by Halden, Rolf U, Paull, Daniel H

“…Triclocarban, N-(4-chlorophenyl)-N‘-(3,4-dichlorophenyl)urea, is a polychlorinated phenyl urea pesticide, marketed under the trademark TCC and used primarily…”
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Bifunctional Asymmetric Catalysis: Cooperative Lewis Acid/Base Systems by Paull, Daniel H, Abraham, Ciby J, Scerba, Michael T, Alden-Danforth, Ethan, Lectka, Thomas

“…In the field of catalytic, asymmetric synthesis, there is a growing emphasis on multifunctional systems, in which multiple parts of a catalyst or multiple…”
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From Bifunctional to Trifunctional (Tricomponent Nucleophile–Transition Metal–Lewis Acid) Catalysis: The Catalytic, Enantioselective α-Fluorination of Acid Chlorides by Erb, Jeremy, Paull, Daniel H, Dudding, Travis, Belding, Lee, Lectka, Thomas

“…We report in full detail our studies on the catalytic, asymmetric α-fluorination of acid chlorides, a practical method that produces an array of…”
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Resveratrol analogues surprisingly effective against triple‑negative breast cancer, independent of ERα by Horgan, Xylia J, Tatum, Hannah, Brannan, Emily, Paull, Daniel H, Rhodes, Lyndsay V

“…Resveratrol, a plant‑derived stilbene compound, has exhibited anticancerous properties, including breast cancer. Stilbenes have a molecular structure highly…”
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Catalytic, Asymmetric α-Fluorination of Acid Chlorides: Dual Metal−Ketene Enolate Activation by Paull, Daniel H, Scerba, Michael T, Alden-Danforth, Ethan, Widger, Leland R, Lectka, Thomas

“…In this Communication, we disclose a catalytic, highly enantioselective (up to >99% ee) α-fluorination of acid chlorides to produce a variety of optically…”
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Asymmetric formal total synthesis of the stemofoline alkaloids: the evolution, development, and application of a catalytic dipolar cycloaddition cascade by Shanahan, Charles S., Fang, Chao, Paull, Daniel H., Martin, Stephen F.

“…A formal synthesis of didehydrostemofoline and isodidehydrostemofoline has been accomplished by preparing an intermediate in the Overman synthesis of these…”
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A Surprising Mechanistic “Switch” in Lewis Acid Activation: A Bifunctional, Asymmetric Approach to α-Hydroxy Acid Derivatives by Abraham, Ciby J, Paull, Daniel H, Bekele, Tefsit, Scerba, Michael T, Dudding, Travis, Lectka, Thomas

“…We report a detailed synthetic and mechanistic study of an unusual bifunctional, sequential hetero-Diels−Alder/ring-opening reaction in which chiral, metal…”
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An Asymmetric, Bifunctional Catalytic Approach to Non-Natural α-Amino Acid Derivatives by Paull, Daniel H, Alden-Danforth, Ethan, Wolfer, Jamison, Dogo-Isonagie, Cajetan, Abraham, Ciby J, Lectka, Thomas

“…A catalytic, asymmetric process for the synthesis of 1,4-benzoxazinones from o-benzoquinone imides and ketene enolates is reported. Addition of Lewis acids…”
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Enantioselective Iodolactonization of Disubstituted Olefinic Acids Using a Bifunctional Catalyst by Fang, Chao, Paull, Daniel H, Hethcox, J. Caleb, Shugrue, Christopher R, Martin, Stephen F

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Response to Comment On “Co-Occurrence of Triclocarban and Triclosan in U.S. Water Resources” by Halden, Rolf U, Paull, Daniel H

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Catalytic, Asymmetric Inverse Electron Demand Hetero Diels-Alder Reactions of o-Benzoquinone Derivatives and Ketene Enolates by Daniel H. Paull, Jamison Wolfer, James W. Grebinski, Anthony Weatherwax, Thomas Lectka

“…We present an array of [4+2] cycloaddition reactions between ketene enolates, catalytically derived from acid chlorides and cinchona alkaloid nucleophilic…”
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Enantioselective Formal Total Syntheses of Didehydrostemofoline and Isodidehydrostemofoline through a Catalytic Dipolar Cycloaddition Cascade by Fang, Chao, Shanahan, Charles S., Paull, Daniel H., Martin, Stephen F.

“…Süßer Kern: Die enantioselektive formale Totalsynthese der Titelverbindungen gelang in 24 Stufen ausgehend von 2‐Desoxy‐D‐ribose. Die Synthese zeichnet sich…”
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Direct Air Capture of CO2 via Ionic Liquids Derived from “Waste” Amino Acids by Recker, Elizabeth A., Green, Matthew, Soltani, Mohammad, Paull, Daniel H., McManus, Gregory J., Davis, James H., Mirjafari, Arsalan

“…Direct capture of CO2 from anthropogenic emissions is an imperative societal task as the concentration of global atmospheric CO2 continues to increase…”
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