Novel reactions of substituted 1-aza-4-oxobutadienes (α-iminoketones) with diorganozinc reagents. Selective ethyl transfer in the Et2Zn/t-BuNC(H)C(Me)O system and x-ray crystal structure of [EtZ]2
In: Journal of Organometallic Chemistry, Jg. 251 (1983-07-01), S. c17- (5S.)
Online
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Zugriff:
The 1/1 reaction of Et2Zn with N-t-butyliminopropanone (t-BuNC(H)C(Me)O) leads to quantitative formation of dinuclear [EtZ n(Et)(t-Bu)NC(H)=C(Me)O ]2 via ethyl transfer within the unstable Et2Zn(t-BuNC(H)−C(Me)O) complex. An X-ray structure determination has shown the product to have a dinuclear structure involving a N,O-chelate bonded [Et(t-Bu)NC(H)C(Me)O]− mono-anionic ligand and a central four membered Zn2O2 ring formed by intermolecular ZnO coordination. Hydrolysis of this zinc complex gives a quantitative yield of N-t-butyl-N-ethylamino propanone, which upon reaction with Et2Zn reforms the dinuclear zinc complex.
Titel: |
Novel reactions of substituted 1-aza-4-oxobutadienes (α-iminoketones) with diorganozinc reagents. Selective ethyl transfer in the Et2Zn/t-BuNC(H)C(Me)O system and x-ray crystal structure of [EtZ]2
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Autor/in / Beteiligte Person: | M.Robert P. Van Vliet ; Jastrzebski, Johann T. B. H. ; Gerard van Koten ; Spek, Anthony L. ; Vrieze, Kees |
Link: | |
Zeitschrift: | Journal of Organometallic Chemistry, Jg. 251 (1983-07-01), S. c17- (5S.) |
Veröffentlichung: | Elsevier BV, 1983 |
Medientyp: | unknown |
ISSN: | 0022-328X (print) |
DOI: | 10.1016/0022-328x(83)80256-3 |
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