Hydroamination of Terminal Alkynes by Amines Catalyzed by Copper Heteropoly Salts: A Simple Approach Towards Imine Synthesis

Shanbhag, Ganapati V.; Palraj, K.; Halligudi, S.B.

doi:10.2174/1874095200802010052

Cited by 5 publications

(1 citation statement)

References 22 publications

(23 reference statements)

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“…The 1 H NMR spectra of N-(methylbenzylidene)aniline, [40] N-(1-phenylethylidene)-2,4,6-tri-[2.2]Paracyclophanediyldihosphane Complexes of Gold methylaniline, [41] and N-[1-(cyclohex-1-en-1-yl)ethylidene]-2,4,6-trimethylaniline are in agreement with the previously reported data. The 1 H NMR spectra of N-(methylbenzylidene)aniline, [40] N-(1-phenylethylidene)-2,4,6-tri-[2.2]Paracyclophanediyldihosphane Complexes of Gold methylaniline, [41] and N-[1-(cyclohex-1-en-1-yl)ethylidene]-2,4,6-trimethylaniline are in agreement with the previously reported data.…”

Section: Intermolecular Hydroaminationsupporting

confidence: 91%

[2.2]Paracyclophanediyldiphosphane Complexes of Gold

et al. 2012

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We have prepared digold(I) complexes with the rigid-backbone diphosphane ligands PhanePhos, xyl-PhanePhos, and Ph 2 -GemPhos. All complexes were characterized by singlecrystal X-ray diffraction, NMR, IR, Raman, and photoluminescence (PL) spectroscopy. [PhanePhos(AuCl) 2 ] and [Gem-Phos(AuCl) 2 ] show a very similar ligand scaffold, but different (aurophilic vs. nonaurophilic) intramolecular Au-Au distances. Absorption and PL spectra of both compounds are quite similar. Theoretical investigations reveal that the excited states are of different character (i.e., influenced by the Au-Au contacts). The respective transition energies, however, lie close to each other, thus resulting in similar experi-

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Section: Intermolecular Hydroaminationsupporting

confidence: 91%

[2.2]Paracyclophanediyldiphosphane Complexes of Gold

et al. 2012

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Development of New Hydrogenations of Imines and Benign Reductive Hydroaminations: Zinc Triflate as a Catalyst

et al. 2012

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The hydrogenation of imines to amines in the presence of catalytic amounts of zinc triflate has been demonstrated for the first time. In addition, an efficient procedure for the reductive hydroamination of alkynes to amines is presented using zinc triflate as a catalyst precursor. In both protocols a variety of different functional groups are tolerated, and the reactions proceed smoothly in high yields.

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