Search Results - "Kaiser, Reinhard P."

Synthesis of Tri- and Disubstituted Fluorenols and Derivatives Thereof Using Catalytic [2+2+2] Cyclotrimerization by Ilaria Caivano, Reinhard P. Kaiser, Florian Schnurrer, Jiří Mosinger, Ivana Císařová, David Nečas, Martin Kotora

“…A method for regioselective synthesis of 2,4-disubstituted and more highly substituted fluorenols using catalytic [2+2+2]cyclotrimerization of mono- and…”
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Transition-metal-catalyzed methods for synthesis of fluorenes by Kaiser, Reinhard P., Caivano, Ilaria, Kotora, Martin

“…This report aims to summarize recent advances in syntheses of fluorenes and derivatives thereof by using methods based on catalytic or stoichiometric…”
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Ball milling - a new concept for predicting degradation profiles in active pharmaceutical ingredients by Kaiser, Reinhard P, Krake, Everaldo F, Backer, Laura, Urlaub, Jonas, Baumann, Wolfgang, Handler, Norbert, Buschmann, Helmut, Beweries, Torsten, Holzgrabe, Ulrike, Bolm, Carsten

“…A method for forced oxidative mechanochemical degradation of active pharmaceutical ingredients (APIs) using clopidogrel hydrogensulfate as a model compound is…”
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Rhodium‐Catalyzed Enantioselective Synthesis of Highly Fluorescent and CPL‐Active Dispiroindeno[2,1‐c]fluorenes by Cadart, Timothée, Nečas, David, Kaiser, Reinhard P., Favereau, Ludovic, Císařová, Ivana, Gyepes, Róbert, Hodačová, Jana, Kalíková, Květa, Bednárová, Lucie, Crassous, Jeanne, Kotora, Martin

“…The enantioselective synthesis of chiral [7]‐helical dispirodihydro[2,1‐c]indenofluorenes (DSF‐IFs) was achieved for the first time in good yields with high er…”
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Investigation of isomerization of dexibuprofen in a ball mill using chiral capillary electrophoresis by Urlaub, Jonas, Kaiser, Reinhard P., Scherf‐Clavel, Oliver, Bolm, Carsten, Holzgrabe, Ulrike

“…Besides the racemate, the S‐enantiomer of ibuprofen (Ibu) is used for the treatment of inflammation and pain. Since the configurational stability of S‐Ibu in…”
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A [2+2+2]-Cyclotrimerization Approach to Selectively Substituted Fluorenes and Fluorenols, and Their Conversion to 9,9′-Spirobifluorenes by Kaiser, Reinhard P., Hessler, Filip, Mosinger, Jiří, Císařová, Ivana, Kotora, Martin

“…Synthesis of selectively substituted fluorenes and fluorenols was achieved by using catalytic [2+2+2]cyclotrimerization. Various starting diynes were reacted…”
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Straightforward Synthesis and Properties of Highly Fluorescent [5]‐ and [7]‐Helical Dispiroindeno[2,1‐c]fluorenes by Kaiser, Reinhard P., Nečas, David, Cadart, Timothée, Gyepes, Robert, Císařová, Ivana, Mosinger, Jiří, Pospíšil, Lubomír, Kotora, Martin

“…This work presents a general approach for synthesis of substituted [5]‐helical dispiroindeno[2,1‐c]fluorenes based on Rh‐catalyzed intramolecular…”
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Selective Borylation of [4]Helicene by Nečas, David, Kaiser, Reinhard P., Ulč, Jan

“…The Ir‐catalyzed borylation of [4]helicene under different reaction conditions was studied for the first time. The results indicate that monoborylation…”
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Front Cover: Selective Borylation of [4]Helicene (Eur. J. Org. Chem. 34/2016) by Nečas, David, Kaiser, Reinhard P., Ulč, Jan

“…The cover picture shows an old, stone‐made, spiral staircase that resembles the unique helical structure of helicenes. Despite the fact that helicenes are…”
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Inside Cover: A [2+2+2]-Cyclotrimerization Approach to Selectively Substituted Fluorenes and Fluorenols, and Their Conversion to 9,9′-Spirobifluorenes (Chem. Eur. J. 39/2015) by Kaiser, Reinhard P., Hessler, Filip, Mosinger, Jiří, Císařová, Ivana, Kotora, Martin

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Cover Feature: Rhodium‐Catalyzed Enantioselective Synthesis of Highly Fluorescent and CPL‐Active Dispiroindeno[2,1‐c]fluorenes (Chem. Eur. J. 44/2021) by Cadart, Timothée, Nečas, David, Kaiser, Reinhard P., Favereau, Ludovic, Císařová, Ivana, Gyepes, Róbert, Hodačová, Jana, Kalíková, Květa, Bednárová, Lucie, Crassous, Jeanne, Kotora, Martin

“…Helicenes are intriguing and inherently chiral compounds with fascinating 3D architecture. Their shape could be compared to whirlpools in the Naruto Strait as…”
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Rhodium‐Catalyzed Enantioselective Synthesis of Highly Fluorescent and CPL‐Active Dispiroindenofluorenes by Cadart, Timothée, Nečas, David, Kaiser, Reinhard P, Favereau, Ludovic, Císařová, Ivana, Gyepes, Róbert, Hodačová, Jana, Kalíková, Květa, Bednárová, Lucie, Crassous, Jeanne, Kotora, Martin

“…The enantioselective synthesis of chiral [7]‐helical dispirodihydro[2,1‐c]indenofluorenes (DSF‐IFs) was achieved for the first time in good yields with high er…”
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Straightforward Synthesis and Properties of Highly Fluorescent ‐ and ‐Helical Dispiroindenofluorenes by Kaiser, Reinhard P, Nečas, David, Cadart, Timothée, Gyepes, Robert, Císařová, Ivana, Mosinger, Jiří, Pospíšil, Lubomír, Kotora, Martin

“…This work presents a general approach for synthesis of substituted [5]‐helical dispiroindeno[2,1‐c]fluorenes based on Rh‐catalyzed intramolecular…”
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Straightforward Synthesis and Properties of Highly Fluorescent [5]‐ and [7]‐Helical Dispiroindeno[2,1‐c]fluorenes by Kaiser, Reinhard P., Nečas, David, Cadart, Timothée, Gyepes, Robert, Císařová, Ivana, Mosinger, Jiří, Pospíšil, Lubomír, Kotora, Martin

“…This work presents a general approach for synthesis of substituted [5]‐helical dispiroindeno[2,1‐c]fluorenes based on Rh‐catalyzed intramolecular…”
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Straightforward Synthesis and Properties of Highly Fluorescent ‐ and ‐Helical Dispiroindenofluorenes by Kaiser, Reinhard P, Nečas, David, Cadart, Timothée, Gyepes, Robert, Císařová, Ivana, Mosinger, Jiří, Pospíšil, Lubomír, Kotora, Martin

“…This work presents a general approach for synthesis of substituted [5]‐helical dispiroindeno[2,1‐c]fluorenes based on Rh‐catalyzed intramolecular…”
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