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

doi:10.1016/0022-328X(85)80217-5

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 journal › Article › Academic › peer-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 language	English
Pages (from-to)	319-324
Number of pages	6
Journal	Journal of Organometallic Chemistry
Volume	292
Issue number	3
DOIs	https://doi.org/10.1016/0022-328X(85)80217-5
Publication status	Published - 10 Sept 1985
Externally published	Yes

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@article{e54f7e005f824724b2b449f6570b7826,

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

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.",

author = "Jastrzebski, \{Johann T B H\} and \{Van Koten\}, Gerard and Christophersen, \{Martin J N\} and Stam, \{Casper H.\}",

year = "1985",

month = sep,

day = "10",

doi = "10.1016/0022-328X(85)80217-5",

language = "English",

volume = "292",

pages = "319--324",

journal = "Journal of Organometallic Chemistry",

issn = "0022-328X",

publisher = "Elsevier BV",

number = "3",

}

The unexpected formation of a lithium-enolate from bis2-[(dimethylamino)methyl]phenyl copper lithium. X-ray structure of Li4[OC(CH2)C6H4CH2NMe2-2]4. / Jastrzebski, Johann T B H; Van Koten, Gerard; Christophersen, Martin J N et al.
In: Journal of Organometallic Chemistry, Vol. 292, No. 3, 10.09.1985, p. 319-324.

Research output: Contribution to journal › Article › Academic › peer-review

TY - JOUR

T1 - The unexpected formation of a lithium-enolate from bis2-[(dimethylamino)methyl]phenyl copper lithium. X-ray structure of Li4[OC(CH2)C6H4CH2NMe2-2]4

AU - Jastrzebski, Johann T B H

AU - Van Koten, Gerard

AU - Christophersen, Martin J N

AU - Stam, Casper H.

PY - 1985/9/10

Y1 - 1985/9/10

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/0009610266

U2 - 10.1016/0022-328X(85)80217-5

DO - 10.1016/0022-328X(85)80217-5

M3 - Article

AN - SCOPUS:0009610266

SN - 0022-328X

VL - 292

SP - 319

EP - 324

JO - Journal of Organometallic Chemistry

JF - Journal of Organometallic Chemistry

IS - 3

ER -

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

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