Probing the Salt-Metathesis Route to Bis(aryl)calcium Compounds: Structure of an Arylcalcate Complex

Journal article


Publication Details

Author(s): Harder S, Ruspic C
Journal: European Journal of Inorganic Chemistry
Publisher: Wiley-VCH Verlag
Publication year: 2015
Journal issue: 35
Pages range: 5743-5750
ISSN: 1434-1948


Abstract


1,3-Diisopropoxybenzene can be selectively metalated by nBuLi or by the superbase mixtures nBuLi/NaOC(Me)(2)Et or nBuLi/KOC(Me)(2)Et to give 2,6-diisopropoxyphenyllithium (71%), 2,6-diisopropoxyphenylsodium (61%), or 2,6-diiso-propoxyphenylpotassium (59%) as isolated products. The attempted synthesis of bis(2,6-diisopropoxyphenyl) calcium by the salt metathesis route using 2,6-diisopropoxyphenylsodium and CaI2 gave an undefined mixture of products, whereas the attempted synthesis of bis(2,6-diisopropoxyphenyl) calcium by the same approach using 2,6-diisopropoxyphenylpotassium and CaI2 gave the calcate complex [{(iPrO)(2)C6H3}(3)Ca]K--(+), which is the first arylcalcate complex to have been structurally characterized. The trend in the C-13 NMR chemical shifts of the aryl C-ipso atoms shows that the calcate complex displays an aryl-metal bond polarity (nucleophilicity/basicity) similar to that in arylsodium compounds.



FAU Authors / FAU Editors

Harder, Sjoerd Prof. Dr.
Lehrstuhl für Anorganische und Metallorganische Chemie


External institutions with authors

Universität Duisburg-Essen (UDE)


How to cite

APA:
Harder, S., & Ruspic, C. (2015). Probing the Salt-Metathesis Route to Bis(aryl)calcium Compounds: Structure of an Arylcalcate Complex. European Journal of Inorganic Chemistry, 35, 5743-5750. https://dx.doi.org/10.1002/ejic.201501178

MLA:
Harder, Sjoerd, and Christian Ruspic. "Probing the Salt-Metathesis Route to Bis(aryl)calcium Compounds: Structure of an Arylcalcate Complex." European Journal of Inorganic Chemistry 35 (2015): 5743-5750.

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Last updated on 2018-07-08 at 16:38