Geitner R, Kosygin I, Görls H, Pahl J, Harder S, Westerhausen M, Langer J (2015)
Publication Status: Published
Publication Type: Journal article
Publication year: 2015
Publisher: Taylor & Francis: STM, Behavioural Science and Public Health Titles / Taylor & Francis
Book Volume: 68
Pages Range: 3302-3316
Journal Issue: 17-18
DOI: 10.1080/00958972.2015.1072625
The phosphonium ylide MePh2P(flu) (3) (flu = C13H8, fluorenylidene) was conveniently prepared by reaction of Ph2P(fluH) (1) (fluH = C13H9, fluorenyl) with iodomethane, followed by subsequent dehydrohalogenation of the resulting phosphonium salt [MePh2P(fluH)] I (2) by potassium tert-butoxide. Compound 3 was further deprotonated by n-butyllithium, yielding the corresponding lithium complex [Li{CH2PPh2(flu)}(tmeda)] (4) in presence of N,N,N',N'-tetramethylethylenediamine (tmeda). This mononuclear lithium compound contains the monoanionic chelating diylidic ligand. An exchange of the neutral bidentate tmeda by tridentate N,N,N',N'',N''-pentamethyldiethylenetriamine (pmdta) enforces a change in coordination mode. Consequently, the diylide is monodentate in [Li{CH2PPh2(flu)}(pmdta)] (5). Compounds 1-5 were characterized by NMR spectroscopy and single-crystal X-ray diffraction experiments.
APA:
Geitner, R., Kosygin, I., Görls, H., Pahl, J., Harder, S., Westerhausen, M., & Langer, J. (2015). An unsymmetrical phosphonium diylide with a fluorenylidene subunit and its lithium complexes. Journal of Coordination Chemistry, 68(17-18), 3302-3316. https://doi.org/10.1080/00958972.2015.1072625
MLA:
Geitner, Robert, et al. "An unsymmetrical phosphonium diylide with a fluorenylidene subunit and its lithium complexes." Journal of Coordination Chemistry 68.17-18 (2015): 3302-3316.
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