2017
DOI: 10.1021/acs.joc.7b01419
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Lithium Amide Protected against Hydrolysis by Aggregated Lithium Halides: An MS + DFT Investigation

Abstract: Supported by mass spectrometry experiments, DFT computations indicate that the lithium amide of a 3-aminopyrrolidine (lithium benzhydryl(1-benzylpyrrolidin-3-yl)amide, 1-Li) is protected, up to a certain limit, against hydrolysis when it is aggregated with a strongly polar partner such as LiCl, LiBr, or MeLi.

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Cited by 13 publications
(10 citation statements)
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“…Additionally, the rotation about the C-C bond in 3 is much facilitated because the benzoxazolyl group is not further substituted. 20 It is shown in Fig. 4 that the addition of a vast excess of water has virtually no effect neither on the chemical shifts nor the signal line shape of complex 2.…”
Section: Solid-state Structures Of Potassium Complexes 2 Andmentioning
confidence: 91%
“…Additionally, the rotation about the C-C bond in 3 is much facilitated because the benzoxazolyl group is not further substituted. 20 It is shown in Fig. 4 that the addition of a vast excess of water has virtually no effect neither on the chemical shifts nor the signal line shape of complex 2.…”
Section: Solid-state Structures Of Potassium Complexes 2 Andmentioning
confidence: 91%
“…[45] In Anbetracht dieser Ergebnisse sollte die Rolle des Kronenethermoleküls in Bezug auf die Hydrolysebeständigkeit von 2 unter dem Aspekt, ob es entweder nur als unbeteiligter Zuschauerligand fungiert oder aktiv zu seinem wasserfesten Charakter beiträgt, näher untersucht werden. [45] In Anbetracht dieser Ergebnisse sollte die Rolle des Kronenethermoleküls in Bezug auf die Hydrolysebeständigkeit von 2 unter dem Aspekt, ob es entweder nur als unbeteiligter Zuschauerligand fungiert oder aktiv zu seinem wasserfesten Charakter beiträgt, näher untersucht werden.…”
Section: Angewandte Chemieunclassified
“…The previous investigation evaluating the effect of ligands clearly underlined influences of such compounds on the reactivity of organolithiums. [44] In this context, "salt effects" have attracted significant interest in recent years, leading to comprehensive spectroscopic and theoretical investigations, [71][72][73][74][75][76][77][78][79][80][81] more specifically in organolithium chemistry where the effects of lithium halides are commonly encountered. [82][83][84][85][86][87][88][89][90][91][92][93][94][95] Lithium salts are undoubtedly among the most widely studied salts, being ubiquitous in a large number of lithiation reactions -either because they are generated in the reaction, or because they are involuntarily brought by a contaminated commercial source.…”
Section: Resultsmentioning
confidence: 99%