2017
DOI: 10.1002/ejic.201701321
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Ethynyl Complexes of Gold(I) Formed by Transmetallation Using Tin(IV) or Silicon(IV) Compounds

Abstract: A series of ethynyl gold(I) complexes with N-heterocyclic carbene ligands were prepared through a transmetallation procedure using either nBu 3 SnC≡CH or TMSC≡CH in the presence of fluoride ions. This methodology represents the first [a]

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Cited by 9 publications
(6 citation statements)
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“…This concerted metalation–deprotonation reaction proceeds under mild aerobic conditions (60 °C, 6 h) using ethanol as a green solvent. Alternative synthetic strategies for the C–H bond activation of the alkyne involve the reaction of [Au­(NHC)­Cl] precursors with the alkyne in the presence of a strong base or the transmetalation process between a gold precursor and organotin, organolithium, or Grignard reagents . An additional option involves the reaction of the desired alkyne and gold synthons such as gold-aryls, gold-hydroxyls, or gold-acetylacetonates .…”
Section: Biologically Active Metal-n-heterocyclic Carbene Complexesmentioning
confidence: 99%
“…This concerted metalation–deprotonation reaction proceeds under mild aerobic conditions (60 °C, 6 h) using ethanol as a green solvent. Alternative synthetic strategies for the C–H bond activation of the alkyne involve the reaction of [Au­(NHC)­Cl] precursors with the alkyne in the presence of a strong base or the transmetalation process between a gold precursor and organotin, organolithium, or Grignard reagents . An additional option involves the reaction of the desired alkyne and gold synthons such as gold-aryls, gold-hydroxyls, or gold-acetylacetonates .…”
Section: Biologically Active Metal-n-heterocyclic Carbene Complexesmentioning
confidence: 99%
“…In 2018, Mohr and co-worker exploited the transmetallation with Sn(IV) or Si(IV) compounds, namely nBu 3 SnC�CH or the cheaper TMSÀ C�CH, to obtain ethynyl gold-NHC complexes (Scheme 30F). [75] This result is noteworthy as most of the above-mentioned methods are not suitable to access compounds with unsubstituted alkynyl moieties. Both reactions are also compatible with different N-heterocyclic carbene ligands.…”
Section: [Au(nhc)(alkynyl)] Complexesmentioning
confidence: 99%
“…Lastly, a series of NHC*-gold(I)-acetylides were synthesised in a procedure adapted from Mohr et al [23]. Therein, it was demonstrated that ethynyltrimethylsilane (TMS-C≡CH) could be activated by fluoride ions present in solution by the addition of NaF.…”
Section: Synthesismentioning
confidence: 99%