Pentafluorophenyl Gold Complexes

Luquín, Asunción; Cerrada, Elena; Laguna, Mariano

doi:10.1002/9783527626724.ch3

Cited by 13 publications

(8 citation statements)

References 241 publications

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“…Analysis of this kind may therefore provide additional information for mycobacterial identification. The unique 2-OH-22:Oalc constituent demonstrated in the three M. xenopi isolates was also detected in all 26 strains of a M. xenopi collection recently analysed by GLC (16). In addition to secondary alcohols, the occurrence of the primary alcohol 1-tetradecanol has recently been described (30).…”

Section: Discussionmentioning

confidence: 77%

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Gas chromatography of mycobacterial fatty acids and alcohols: Diagnostic applications

Jantzen

Tangen

Eng

1989

APMIS

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Jantzen, E., Tangen, T. & Eng. J. Gas chromatography of mycobacterial fatty acids and alcohols: Diagnostic applications. APMIS 5'7: [1037][1038][1039][1040][1041][1042][1043][1044][1045] 1989.Capillary gas chromatography of cellular fatty acids and alcohols has been used as a routine method for a period of two years in the mycobacterial diagnostic laboratory of Statens institutt for folkehelse, Oslo, Norway. All mycobacteria (165 isolates) other than Mycobacterium tuberculosis (MOTT) and 24 randomly selected M . tzib~~rczilosis isolates were studied. Twelve characteristic lipid constituents allowed the construction of a diagnostic scheme. Without exceptions. all 36 examined isolates belonging to the M. ttthc,r~.zf,uk)sis-complex were characterized by a relatively high concentration level of hexacosanoic acid (mean: 4%. range: I-l3%), low level of tetracosanoic acid (mean: 1%. range: 0.1-3%), lack of methylbranched acids other than tuberculostearic acid, and lack of fatty alcohols. Members of the MAIS-complex (73 isolates) were all characterized by the general presence of the fatty alcohols 2-octadecanol (mean: 2%, range: 0.1-5%) and 2-eicosanol (mean: 7%, range: 2-2 1 %), relatively high levels of tetracosanoic acid (mean: 5%, range: 1-15%) and lack (or trace) of hexacosanoic acid and methylbranched acids other than tuberculostearic acid. All 16 isolates of M . gordonae were easily recognized by their unique lack of tuberculostearic acid and their content of 2-methyl-tetradecanoic acid (mean: 5%, range: 2-1 2%), and the M . xenopi isolates were the only examined strains containing the fatty alcohol 2-docosanol (mean: 9%, range: 2-13%). The six M . mulmoense strains contained the two unique constituents 2-methyl eicosanoic acid (mean: 39/0, range: 1-4%) and 2,4,6-trimethyl tetracosanoic acid (mean: 3%, range: 2-4%). The ten strains of M . kunsusii were characterized by 2.4-dimethyl tetradecanoic acid (mean: 5%, range: 1-1 I%), whereas the seven strains of M . rriarinum shared 2,4-dimethyl hexadecanoic acid (mean: 4%, range 0.2-12%) as a specific marker.

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Section: Discussionmentioning

confidence: 77%

“…retention time shifts after trifluoroacetylation. and by their MS fragmentation with emphasis on a base peak of tn/z 45 (CH,CH=OH)+ and the presence of a M-I8 fragment ( 1,16).…”

Section: Gas Chromatographymentioning

confidence: 99%

Gas chromatography of mycobacterial fatty acids and alcohols: Diagnostic applications

Jantzen

Tangen

Eng

1989

APMIS

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“…100,101 This anion is well-known in the aurophilic literature and has exhibited metallophilic interactions in dozens of compounds. 102, 103 Unusually for a gold organometallic compound it is resilient to light and moderate heat. The C 6 F 5 ligands do not participate in ligand exchange interactions, unlike Cland CNabove.…”

Section: Ligand Electronic Influencesmentioning

confidence: 99%

Steric and electronic effects in metallophilic double salts

Doerrer

2010

Dalton Trans.

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This Perspective highlights our efforts to assemble infinite chains of metal atoms in double salts of the form [M](+)[M](-) under the complementary influences of metallophilic interactions and electrostatic attraction. Our design strategy necessarily incorporates the significant steric constraints of one-dimensional assemblies as well as the more subtle and challenging electronic tuning of weak dispersion forces.

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“…Over the past few years, an increasing number of publications covering gold(III) complexes have been published. , Because of their highly interesting applications in medicine, , catalysis , and their luminescence properties, increasing efforts are devoted to their synthesis in order to further develop anticancer drugs and optoelectronic applications. In general, because they have a relatively large reduction potential, di- and triorganogold(III) complexes tend to be instable and mostly undergo reductive elimination. , Reductive elimination at gold(III) can be prevented by inhibiting access to 3-coordinate species, which can be achieved by chelate ligands. Hence, among the ligands used for the synthesis of bench-stable gold(III) complexes, bidentate [C^N] ligands are very popular, and often two ancillary monodentate ligands complete the coordination sphere around the gold center. , Because of their promising photophysical properties, especially acetylides as ancillary monodentate ligands are thoroughly studied .…”

Section: Introductionmentioning

confidence: 99%

Simple Mercury-Free Synthesis and Characterization of Symmetric and Unsymmetric Mono- and Dialkynyl (tpy)Au(III) Complexes

et al. 2020

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A highly efficient mercury-free route, providing [C^N] cyclometalated symmetric dialkynyl gold(III) complexes with 2-(p-tolyl)pyridine (tpy) as bidentate ligands and using alkynyllithium reagents, was developed. With 1,9-decadiyne, an unprecedented representative of a di(bidentate) gold(III) complex, for the first time became accessible. By using Grignard instead of the alkynyllithium reagents, we succeeded in synthesizing a range of novel monoalkynyl gold(III) complexes in excellent yields (74–92%) and diastereoselectivity. Treating [(tpy)Au(CCTMS)2] with Bu4NF in THF gave a complete deprotection, and with K2CO3 in methanol, there was a selective deprotection of the TMS group trans to the pyridyl N atom, providing [(tpy)Au(CCH)(CCTMS)] as the major product. This new type of cyclometalated gold(III) complex bears two different alkynes as ancillary ligands. The further functionalization of the monoalkynyl (tpy)gold(III) complexes was investigated, offering a universal unprecedented and diastereoselective access to unsymmetrical dialkynyl (tpy)gold(III) complexes.

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Pentafluorophenyl Gold Complexes

Cited by 13 publications

References 241 publications

Gas chromatography of mycobacterial fatty acids and alcohols: Diagnostic applications

Gas chromatography of mycobacterial fatty acids and alcohols: Diagnostic applications

Steric and electronic effects in metallophilic double salts

Simple Mercury-Free Synthesis and Characterization of Symmetric and Unsymmetric Mono- and Dialkynyl (tpy)Au(III) Complexes

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