Reactivity Consequences of Substituent-Dependent Preaggregation Motifs of n- and tert-Butyllithium towards 1,3,5-Triazacyclohexanes†
Reactivity Consequences of Substituent-Dependent Preaggregation Motifs of n- and tert-Butyllithium towards 1,3,5-Triazacyclohexanes†
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正丁基锂和叔丁基锂对 1,3,5-三氮杂环己烷的取代基依赖性预聚集基序的反应性后果â
DOI:
10.1002/ejic.201301267
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发表时间:
2014
影响因子:
2.3
通讯作者:
N. W. Mitzel
中科院分区:
文献类型:
--
作者:
M. Hülsmann;A. Mix;B. Neumann;H.-G. Stammler;N. W. Mitzel
The cyclic triaminal 1,3,5‐tri‐tert‐butyl‐1,3,5‐triazacyclohexane (TtBuTAC) was treated withtBuLi, but instead of the expected deprotonation at a CH2unit, the [(TtBuTAC)(tBuLi)] (2) adduct was formed. This is a monomeric tetracoordinate form oftBuLi; its molecular structure was determined by single‐crystal X‐ray diffraction (XRD) and it is likely to be monomeric in C6D6solution according to1H NMR,13C NMR, and7Li NMR spectroscopy. TtBuTAC reacts withnBuLi to give a laddertype [(TtBuTAC)(nBuLi)2]2aggregate of fournBuLi units terminated by two TtBuTAC ligands. This adduct was characterized by NMR spectroscopy and XRD. It slowly decays in solution, and minor quantities of a [TtBuTAC‐Li(μ‐nBu)]2[Li3(nBu)2N(tBu)(n‐pent)] product were obtained and characterized by XRD. This compound contains amide units from the reaction of the formal monomer of TtBuTAC, Me3C‐N=CH2, withnBuLi, which demonstrates the different types of reactivity of trisaminals such as TtBuTAC.
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影响因子:
--
作者:
Ina Kamps;Daniel Bojer;Stuart A. Hayes;R. J. Berger;B. Neumann;N. Mitzel
通讯作者:
N. Mitzel
影响因子:
2.8
作者:
Ruthanne D. Thomas;Matthew T. Clarke;R. Jensen;T. Young
通讯作者:
T. Young
DOI:
--
发表时间:
1992
期刊:
影响因子:
--
作者:
W. Bauer;L. Lochmann
通讯作者:
L. Lochmann
影响因子:
2.3
作者:
M. Hülsmann;B. Neumann;H.-G. Stammler;N. W. Mitzel
通讯作者:
N. W. Mitzel
影响因子:
2.8
作者:
Gessner, Viktoria H.;Strohmann, Carsten
通讯作者:
Strohmann, Carsten