Search Results - "Kaspar, Ludwig T."

Catalytic Asymmetric Synthesis of Palmerolide A via Organoboron Methodology by Penner, Marlin, Rauniyar, Vivek, Kaspar, Ludwig T, Hall, Dennis G

“…A catalytic enantioselective synthesis of the antimelanoma marine natural product (−)-palmerolide A was accomplished using a longest sequence of 21 steps and…”
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Titanium-Catalyzed Intermolecular Hydroamination of Vinylarenes by Kaspar, Ludwig T., Fingerhut, Benjamin, Ackermann, Lutz

“…The Lewis acid TiCl4 allows the intermolecular hydroamination of vinylarenes (see scheme). Some of the hydroamination products undergo rearrangements to give…”
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TiCl4-Catalyzed Intermolecular Hydroamination Reactions of Norbornene by Ackermann, Lutz, Kaspar, Ludwig T, Gschrei, Christian J

“…An intermolecular hydroamination reaction of norbornene is presented that uses catalytic amounts of user-friendly TiCl4 and tolerates a variety of functional…”
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TiCl4-Catalyzed Indirect Anti-Markovnikov Hydration of Alkynes:  Application to the Synthesis of Benzo[b]furans by Ackermann, Lutz, Kaspar, Ludwig T

“…An efficient methodology for the indirect anti-Markovnikov hydration of unsymmetrically substituted terminal and internal alkynes is based on TiCl4-catalyzed…”
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Two Titanium-Catalyzed Reaction Sequences for Syntheses of Pyrroles from (E/Z)-Chloroenynes or α-Haloalkynols by Ackermann, Lutz, Sandmann, René, Kaspar, Ludwig T

“…Titanium-catalyzed intermolecular hydroaminations of (E/Z)-chloroenynes enabled an efficient pyrrole synthesis, which set the stage for the development of a…”
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Hydroaminations of unactivated alkenes with basic alkylamines: group 4 metal halide catalysts and Brønsted-acid organocatalysts by Ackermann, Lutz, Kaspar, Ludwig T, Althammer, Andreas

“…Two distinct economical catalysts for intramolecular hydroaminations of electronically unactivated alkenes with basic amines are described, which are based on…”
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Three-component indole synthesis using ortho-dihaloarenes by Kaspar, Ludwig T., Ackermann, Lutz

“…A three-component synthesis of substituted indoles is accomplished starting from ortho-dihaloarenes through the use of a multicatalytic system consisting of an…”
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Annulation of internal alkynes through a hydroamination/aza-Heck reaction sequence for the regioselective synthesis of indoles by Ackermann, Lutz, Sandmann, René, Villar, Amparo, Kaspar, Ludwig T.

“…Highly regioselective annulation reactions of unsymmetrically substituted alkynes by primary 2-bromo or 2-chloroanilines are achieved with an efficient one-pot…”
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TiCl 4 -Catalyzed Indirect Anti-Markovnikov Hydration of Alkynes:  Application to the Synthesis of Benzo[ b ]furans by Ackermann, Lutz, Kaspar, Ludwig T.

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TiCl 4 -Catalyzed Intermolecular Hydroamination Reactions of Norbornene by Ackermann, Lutz, Kaspar, Ludwig T., Gschrei, Christian J.

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Titan‐katalysierte intermolekulare Hydroaminierung von Vinylarenen by Kaspar, Ludwig T., Fingerhut, Benjamin, Ackermann, Lutz

“…Mit der Lewis‐Säure TiCl4 gelingt die intermolekulare Hydroaminierung von Vinylarenen (siehe Schema). Die Hydroaminierungsprodukte lagern sich anschließend zum…”
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Titan-katalysierte intermolekulare Hydroaminierung von Vinylarenen by Kaspar, Ludwig T., Fingerhut, Benjamin, Ackermann, Lutz

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