Synthesis of a new series of macrocyclic polyether-diester ligands

Maas, G.; Bradshaw, Jerald S.; Izatt, Reed M.; Christensen, James J.

doi:10.1021/jo00444a032

Cited by 51 publications

(22 citation statements)

References 4 publications

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“…A satisfactory elemental analysis could not be obtained for five of the compounds (6,11,(17)(18)(19). The sulfur-containing compounds appeared to decompose as noted by the development of a distinct yellow color on standing.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of macrocyclic polyether-diester compounds with an aromatic subcyclic unit

Bradshaw¹,

Thompson²

1978

J. Org. Chem.

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Section: Resultsmentioning

confidence: 99%

Synthesis of macrocyclic polyether-diester compounds with an aromatic subcyclic unit

Bradshaw¹,

Thompson²

1978

J. Org. Chem.

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“…Proton NMR spectra for lOd and for the complex of 1M with isopropylammonium perchlorate at room temperature, -70, -30, -10 eC (coalescence temperature) and at +20 °C in CD2CIj (solvent peak at 5.25). (Bradshaw et al, 1976Bradshaw and Thompson, 1978;Maas et al, 1977).…”

Section: Synthesismentioning

confidence: 99%

The Preparation and Cation Complexation Properties of Macrocyclic Polyether-Diester Ligands: A Short Review

Bradshaw¹,

Asay²,

Baxter³

et al. 1980

Ind. Eng. Chem. Prod. Res. Dev.

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The combustion to CO + C02 seems to run parallel to the ratio 02/HC1 in the feed.In order to obtain high yields of perchloroethylene, Le., high degrees of chlorination, it is necessary to use a feed mixture richer in HC1+ O2 than calculated from eq 1 and 2. We have postulated a reaction scheme which accounts reasonably well for all the reaction products observed. Finally, we have also shown that, with the exception of CC4, the chlorinated byproducts can be recycled without accumulating in the reactor.The synthesis and complexation properties of a series of macrocyclic polyether-diester ligands are reviewed. Over 70 compounds are listed. Cation complexation properties were studied by temperature dependent 'H NMR spectroscopy, calorimetric titrations, and membrane transport of metal cations. In general, the macrocyclic polyether-diester compounds are not as good at complexing metal cations as are the polyether crown compounds. The diesters containing a pyridine subcyclic unit, which complex very strongly with all cations studied, are an exception to the general rule stated above. The temperature dependent 'H NMR spectral results show that macrocyclic polyether-diester ligands containing furan and benzene subcyclic units have a different complex stability order with benzylammonium perchlorate than do the pyridine-containing ligands. With the pyridino ligands, complexes with the 18-membered ring were the most stable. On the other hand, for the benzo or furano ligands, the 24membered ring compounds form more stable complexes than those with smaller macrorings.

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“…Tiyocrown eterlerin makrohalkalı formasyonunun karbonil grubu kapsadığı önceden biliniyordu [28][29][30][31]. Makrosilik eter-ester bileşiğinin [32], eter-ester içeren geniş kapsamlı polieter-diester bileşiğinin [33][34][35][36][37][38][39][40], tiyoeter-ester [35,37,39,41] ve etertiyolester [35,37] bileşiğinin sentezi, Bradshaw, Izatt ve Christensen tarafından dibazik asit tuzu ve alfa, omega-dihalo bileşikleri veya dibazik asit klorürleri ve alfa, omegadihidroksi bileşiklerinden herhangi birine bağlanarak hazırlanmıştır. İki makrohalkalı polieter-monoester bileşikleri, Matsushima [42] tarafından normal verimlilikle bulunmuştur.…”

Section: Introductionunclassified

Investigation of the ınhibitory effects of some macrogenetic thiocrown ethers on polyphenol oxidase enzyme

Ergün¹,

Çiçek²

2018

Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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Synthesis of a new series of macrocyclic polyether-diester ligands

Cited by 51 publications

References 4 publications

Synthesis of macrocyclic polyether-diester compounds with an aromatic subcyclic unit

Synthesis of macrocyclic polyether-diester compounds with an aromatic subcyclic unit

The Preparation and Cation Complexation Properties of Macrocyclic Polyether-Diester Ligands: A Short Review

Investigation of the ınhibitory effects of some macrogenetic thiocrown ethers on polyphenol oxidase enzyme

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