Search Results - "Calter, Michael A"

Asymmetric Total Syntheses of (−)-Variabilin and (−)-Glycinol by Calter, Michael A, Li, Na

“…Total syntheses of (−)-variabilin and (−)-glycinol have been accomplished, using the catalytic, asymmetric “interrupted” Feist–Bénary reaction (IFB) as the…”
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Catalytic, Asymmetric, “Interrupted” Feist−Bénary Reactions by Calter, Michael A, Phillips, Ryan M, Flaschenriem, Christine

“…Pyrimidine derivatives of the cinchona alkaloids function as excellent asymmetric catalysts for the “Interrupted” Feist−Bénary Reaction. This reaction produces…”
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Catalytic, Asymmetric Preparation of Ketene Dimers from Acid Chlorides by Calter, Michael A, Orr, Robert K, Song, Wei

“…The cinchona alkaloid-catalyzed dimerization of monosubstituted ketenes generated in situ from the reaction of acid chlorides and diisopropylethylamine yields…”
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Catalytic, Asymmetric, Aldol/O‑Conjugate Addition Sequence for the Construction of Highly Substituted Furanoids by Calter, Michael A, Korotkov, Alexander

“…A new method for the enantioselective synthesis of highly functionalized dihydrofurans has been developed. This process, related to the interrupted…”
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Catalytic, Asymmetric Michael Reactions of Cyclic Diketones with β,γ-Unsaturated α-Ketoesters by Calter, Michael A, Wang, Jun

“…Newly synthesized cinchona alkaloid-derived pyrimidines function as effective asymmetric catalysts for the Michael reaction between cyclic diketones and…”
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Scope and Diastereoselectivity of the “Interrupted” Feist−Bénary Reaction by Calter, Michael A, Zhu, Cheng

“…The base-promoted condensation of β-dicarbonyl compounds with α-haloketones, the Feist−Bénary reaction, conveniently produces highly substituted dihydrofurans…”
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Catalytic, asymmetric, interrupted Feist-Bénary reactions of α-tosyloxyacetophenones by Calter, Michael A, Korotkov, Alexander

“…A new variant of the Interrupted Feist-Bénary (IFB) reaction uses α-tosyloxyacetophenones as electrophiles and proceeds in good yields and excellent…”
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Rapid Synthesis of the 7-Deoxy Zaragozic Acid Core by Calter, Michael A, Zhu, Cheng, Lachicotte, Rene J

“…We have developed an efficient synthesis of the 7-deoxy zaragozic acid core. The synthesis begins with a Feist−Bénary reaction that assembles all three carbons…”
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Synthesis of the C21–C34-segment of the aplyronines using the dimer of methylketene by Calter, Michael A, Guo, Xin

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Synthesis of the C1–C27 portion of the aplyronines by Calter, Michael A, Zhou, Jianguang

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Immobilized Enzymes as Catalytically-Active Tools for Nanofabrication by Jang, Chang-Hyun, Stevens, Benjamin D, Carlier, Paul R, Calter, Michael A, Ducker, William A

“…One efficient strategy for creating nanostructures on surfaces is to use the catalytic properties of a surface molecule. This strategy benefits from the…”
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One-Pot, Catalytic, Asymmetric Syntheses of All Four Stereoisomers of a Dipropionate Synthon by Calter, Michael A, Guo, Xin

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Fundamentals of Asymmetric Catalysis by Calter, Michael A

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Formation of Disubstituted β-Lactones Using Bifunctional Catalysis by Calter, Michael A, Tretyak, Olexandr A, Flaschenriem, Christine

“…Acid chlorides and aromatic aldehydes react in the presence of a stoichiometric amount of a tertiary amine and catalytic amounts of a cinchona alkaloid…”
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First Total Synthesis of a Natural Product Containing a Chiral, β-Diketone:  Synthesis and Stereochemical Reassignment of Siphonarienedione and Siphonarienolone by Calter, Michael A, Liao, Wensheng

“…The first total syntheses of siphonarienolone and siphonarienedione are described. The development of a stereoselective synthesis of β-diketones facilitated…”
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Catalytic, Asymmetric Dimerization of Methylketene by Calter, Michael A

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Catalytic Asymmetric Synthesis of Quaternary Carbon Centers. Exploratory Studies of Intramolecular Heck Reactions of (Z)-α,β-Unsaturated Anilides and Mechanistic Investigations of Asymmetric Heck Reactions Proceeding via Neutral Intermediates by Ashimori, Atsuyuki, Bachand, Benoit, Calter, Michael A, Govek, Steven P, Overman, Larry E, Poon, Daniel J

“…Intramolecular Heck reactions of seven (Z)-α,β-unsaturated 2-iodoanilides catalyzed by Pd−BINAP were surveyed using two reaction conditions:  (1)…”
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Catalytic, Asymmetric Synthesis of the C1 ‘−C10 ‘ Segment of Pamamycin 621A by Calter, Michael A, Bi, F. Christopher

“…This paper describes a catalytic, asymmetric approach to the C1 ‘−C10 ‘ segment of pamamycin 621A. We synthesize this segment in a convergent manner, with each…”
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Catalytic, Asymmetric Synthesis and Diastereoselective Aldol Reactions of Dipropionate Equivalents by Calter, Michael A, Song, Wei, Zhou, Jianguang

“…The dimer of methylketene can be conveniently prepared in one step and high enantiomeric excess from propionyl chloride, using a catalytic amount of a…”
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The direct aldol reaction using bifunctional catalysts by Calter, Michael A., Orr, Robert K.

“…In this paper, we describe an approach to the direct aldol reaction using a bifunctional catalyst containing Lewis acidic and basic functional groups. To…”
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