The unexpected formation of a lithium-enolate from bis2-[(dimethylamino)methyl]phenyl copper lithium. X-ray structure of Li4[OC(CH2)C6H4CH2NMe2-2]4

Johann T B H Jastrzebski, Gerard Van Koten*, Martin J N Christophersen, Casper H. Stam

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Attempted crystallization of the bis(aryl)lithium cuprate, Cu2Li2(C6H4CH2-NMe2-2)4, from diethyl ether/pentane afforded in according to an X-ray diffraction analysis appeared to be the lithium enolate, Li4[OC(=CH2)C6H4CH2NMe2-2]4. This consists of a central Li4O4 cube with intramolecular LiN coordination of the CH2NMe2 substituent. This enolate, which has also been prepared via an independent route, is the first example of a structurally characterized lithium enolate and contains Li centres that are intramolecularly coordinated.

Original languageEnglish
Pages (from-to)319-324
Number of pages6
JournalJournal of Organometallic Chemistry
Volume292
Issue number3
DOIs
Publication statusPublished - 10 Sept 1985
Externally publishedYes

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