Journal ArticleDOI
n-Butylpotassium: preparation, synthetic use and NMR properties in hexane and tetrahydrofuran solution
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TLDR
Precipitated n-butylpotassium (BuK), prepared by metal exchange between n-butyllithium and potassium-t-amylate, dissolves in hexane after addition of N, N, N ', N '-tetramethylethylenediamine (TMEDA) as discussed by the authors.About:
This article is published in Journal of Organometallic Chemistry.The article was published on 1986-05-20. It has received 34 citations till now. The article focuses on the topics: Nuclear magnetic resonance spectroscopy & Tetrahydrofuran.read more
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Book ChapterDOI
Sodium, Potassium, Rubidium, and Cesium: X-Ray Structurai Analysis of Their Organic Compounds1
TL;DR: In this paper, the published X-ray investigations of organometallic compounds of Na, K, Rb, and Cs have been discussed and many structures through 1985 also are reported.
Journal ArticleDOI
Strukturen alkalimetallorganischer und verwandter Verbindungen
TL;DR: In this paper, the authors discuss the organischen Verbindungen der Alkalimetalle and auch des Magnesiums als Ionenaggregate, deren Eigenschaften sich durch Solvatisierung, z.B. durch Ether and Amine, stark verandern lassen.
Journal ArticleDOI
Mixed AggregAte (MAA): a single concept for all dipolar organometallic aggregates. 2. Syntheses and reactivities of homo/heteroMAAs.
TL;DR: Syntheses and Reactivities of Homo/HeteroMAAs Florence Mongin* and Anne Harrison-Marchand.
Journal ArticleDOI
Mixed AggregAte (MAA): A Single Concept for All Dipolar Organometallic Aggregates. 1. Structural Data
TL;DR: Organometallic Aggregates.
Journal ArticleDOI
Sind polare Organometallverbindungen “Carbanionen”? Der Einfluß des Gegenions auf Struktur und Energie von Organoalkalimetallverbindungen
TL;DR: In this article, a Ubersicht on the role of the Metall-Ionen-Einflus auf the Reaktivitat (z.B. Basizitat gegenuber Nucleophilie) des "Carbanions" is presented.
References
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Journal ArticleDOI
13C‐NMR.‐Spektroskopie von Organolithiumverbindungen bei tiefen Temperaturen. Strukturinformation aus der 13C, 6Li‐Kopplung
TL;DR: In this paper, the 13C-6Li-coupling was observed of all species but those which contain contact ion pair C,Li-bonds (benzylic and acetylenic derivatives).
Journal ArticleDOI
Bestimmung des Aggregationsgrads lithiumorganischer Verbindungen durch Kryoskopie in Tetrahydrofuran
Walter Bauer,Dieter Seebach +1 more
TL;DR: In this article, the association behavior of alkyl-, aryl- and alkinyl-lithium compounds as well as of lithium enolates and chiral lithium azaenolates was determined from freezing-point depression values in dilute tetrahydrofuran solutions at −108°C.
Journal ArticleDOI
The “super-basic” butyllithium/potassium tert-butoxide mixture and other lickor-reagents
Manfred Schlosser,Sven Strunk +1 more
TL;DR: The reactivity pattern of the butyllithium/potassium tert-butoxide mixt. with cumene differs significantly from that of BuK and thus disproves the claimed identity of these two reagents as mentioned in this paper.
Journal ArticleDOI
Preparation of organopotassium compounds
L. Lochmann,D. Lím +1 more
TL;DR: Some organopotassium compounds have been prepared by treatment of n-butyllithium compounds with potassium (−)(1R)-menthoxide in the presence of some aromatic hydrocarbons.
Journal ArticleDOI
Über Metallalkyl-Verbindungen, XI Darstellung und Kristallstruktur des Methylkaliums†
Erwin Weis,G. Sauermann +1 more
TL;DR: In this article, a hexagonal structure was derived for the K-ions and CH3-groups (a = 4.278, c = 8.283 A, 2 formula units, density 1.37 g/cm3).
Related Papers (5)
On the interaction of organolithium compounds with sodium and potassium alkoxides. A new method for the synthesis of organosodium and organopotassium compounds
L. Lochmann,J. Pospíšil,D. Lím +2 more
Structure of a super base in tetrahydrofuran solution studied by 6Li,1H HOESY, 133Cs,1H HOESY, and MNDO. Evidence for discrete species rather than a mixed aggregate
Walter Bauer,Lubomir Lochmann +1 more