Relevant bibliographies by topics / Carboxylate assistance

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  1. Journal articles
  2. Dissertations / Theses

Academic literature on the topic 'Carboxylate assistance'

Author: Grafiati
Published: 4 June 2021
Last updated: 10 February 2022

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Journal articles on the topic "Carboxylate assistance"

1

Schinkel, Marvin, Jan Wallbaum, Sergei I. Kozhushkov, Ilan Marek, and Lutz Ackermann. "Carboxylate Assistance for Catalyzed Hydroarylations of Methylenecyclopropanes." Organic Letters 15, no. 17 (August 19, 2013): 4482–84. http://dx.doi.org/10.1021/ol402037f.

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Schinkel, Marvin, Jan Wallbaum, Sergei I. Kozhushkov, Ilan Marek, and Lutz Ackermann. "ChemInform Abstract: Carboxylate Assistance for Catalyzed Hydroarylations of Methylenecyclopropanes." ChemInform 45, no. 5 (January 16, 2014): no. http://dx.doi.org/10.1002/chin.201405050.

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3

Li, Jie, and Lutz Ackermann. "Carboxylate-assisted ruthenium(ii)-catalyzed C–H activations of monodentate amides with conjugated alkenes." Organic Chemistry Frontiers 2, no. 9 (2015): 1035–39. http://dx.doi.org/10.1039/c5qo00167f.

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4

Hubrich, Jonathan, Thomas Himmler, Lars Rodefeld, and Lutz Ackermann. "Ruthenium(II)-Catalyzed C–H Arylation of Azoarenes by Carboxylate Assistance." ACS Catalysis 5, no. 7 (June 9, 2015): 4089–93. http://dx.doi.org/10.1021/acscatal.5b00939.

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5

Sun, Qian, Ai-Ling Cheng, Kun Wang, Xiu-Chun Yi, and En-Qing Gao. "Chiral or achiral: four isomeric Cd(ii) coordination polymers based on phenylenediacrylate ligands." CrystEngComm 17, no. 6 (2015): 1389–97. http://dx.doi.org/10.1039/c4ce02019g.

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The isomeric coordination polymers derived fromp- andm-phenylenediacrylates contain similar homochiral motifs (hydrogen-bonded layers or μ-Ocarboxylatebridged helical chains), but only themligand, with assistance of hydrogen bonds, induces spontaneous resolution to generate 3D homochiral networks.
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Wang, Na, Hongxin Liu, Hang Gao, Jiafeng Zhou, Longzhangdi Zheng, Juan Li, Hong-Ping Xiao, Xinhua Li, and Jun Jiang. "Ni(II)-Catalyzed Enantioselective Synthesis of β-Hydroxy Esters with Carboxylate Assistance." Organic Letters 21, no. 17 (August 8, 2019): 6684–89. http://dx.doi.org/10.1021/acs.orglett.9b02297.

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Hrovat, Sara, Miha Drev, Uroš Grošelj, Franc Perdih, Jurij Svete, Bogdan Štefane, and Franc Požgan. "Conformationally Driven Ru(II)-Catalyzed Multiple ortho-C–H Bond Activation in Diphenylpyrazine Derivatives in Water: Where Is the Limit?" Catalysts 10, no. 4 (April 12, 2020): 421. http://dx.doi.org/10.3390/catal10040421.

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Ru(II)/carboxylate/PPh3 catalyst system enabled the preparation of highly conjugated pyrazine derivatives in water under microwave irradiation. Both nitrogen atoms efficiently dictated cleavage of the ortho-C–H bonds in both benzene rings of 2,3-diphenylpyrazine substrates through chelation assistance. In conformationally more flexible diphenyldihydropyrazine 1, the arylation of four ortho-C–H bonds was possible, while in the aromatic analog 2, the triarylation was the limit.
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Huang, Mei-Fang, Yi-Reng Lin, Yu-Tzu Chang, Yow-Ling Shiue, and Shih-Shin Liang. "Reductive amination assistance for quantification of oseltamivir phosphate and oseltamivir carboxylate by HPLC-MS/MS." Journal of Chromatography B 1087-1088 (June 2018): 23–28. http://dx.doi.org/10.1016/j.jchromb.2018.03.040.

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9

Ackermann, Lutz. "Robust Ruthenium(II)-Catalyzed C–H Arylations: Carboxylate Assistance for the Efficient Synthesis of Angiotensin-II-Receptor Blockers." Organic Process Research & Development 19, no. 1 (January 5, 2015): 260–69. http://dx.doi.org/10.1021/op500330g.

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10

Ackermann, Lutz. "ChemInform Abstract: Robust Ruthenium(II)-Catalyzed C-H Arylations: Carboxylate Assistance for the Efficient Synthesis of Angiotensin-II-Receptor Blockers." ChemInform 46, no. 15 (March 26, 2015): no. http://dx.doi.org/10.1002/chin.201515325.

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Dissertations / Theses on the topic "Carboxylate assistance"

1

Nekkanti, Yelha Phani Kumar. "Ruthenium(II) biscarboxylate-Catalyzed C(sp2)-H and C(sp3)-H Functionalizations by Chelation Assistance." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2016. http://hdl.handle.net/11858/00-1735-0000-002B-7CCA-E.

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2

Fèvre, Maréva. "Phosphines, carbènes N-hétérocycliques (NHCs) et nouveaux précurseurs de NHCs pour la catalyse organique de réactions (macro)moléculaires." Thesis, Bordeaux 1, 2012. http://www.theses.fr/2012BOR14618/document.

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Abstract:
Dans ce travail de thèse, plusieurs approches ont été développées pour permettre une utilisation plus variée des carbènes N-hétérocycliques (NHCs) et des phosphines en tant que catalyseurs/activateurs organiques.Les précurseurs de NHCs étudiés dans un premier temps, c'est-à-dire les hydrogénocarbonates d’azolium, peuvent être synthétisés en une seule étape, à l’inverse des NHCs dont la synthèse et l’isolation sont souvent compliquées. Nous avons démontré que ces espèces sont stables à l’air et sont à l’équilibre en solution avec leurs homologues carboxylates d’azolium (adduits NHC-CO2). Leur utilisation permet donc de faciliter la manipulation des NHCs tout en conservant une activité catalytique satisfaisante tant en synthèse moléculaire qu’en chimie des polymères.Des paires de Lewis silane ou borane/NHC ont ensuite été employées afin d’augmenter le potentiel des NHCs pour des réactions “modèles” de chimie (macro)moléculaire par un effet de double assistance (acide/base de Lewis).Enfin, une phosphine commerciale a été utilisée pour catalyser la polymérisation par transfert de groupe des (méth)acrylates d’alkyle de façon “vivante/contrôlée”
In this thesis work, some points are adressed in order to broaden the scope of the application of N-heterocyclic carbenes (NHCs) as organic catalysts/activators.The novel NHC precursors studied first, i.e. azolium hydrogen carbonates, are synthesized in a one-step undemanding process, in contrast to NHCs whose synthesis and isolation is often a tedious procedure. We then showed that these species are air-stable and are at the equilibrium, in solution, with their azolium-2-carboxylates homologues (NHC-CO2 adducts). The use of such precatalysts thus allows facilitating the manipulation of NHCs, while maintaining an efficient catalytic activity in molecular chemistry as well as in polymer synthesis.We then proposed to use NHCs in conjunction with organic Lewis acids (silanes or boranes) as a possible means to induce a cooperative dual activation mechanism (Lewis acid/base) in order to increase the potential of NHCs for “model” (macro)molecular reactions.Finally, a commercial phosphine was used to trigger the group transfer polymerization of alkyl (meth)acrylates in a “controlled/living” fashion
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