Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 18362-64-6, is researched, SMILESS is CC(C)C(CC(C(C)C)=O)=O, Molecular C9H16O2Journal, Bulletin of the Institute for Chemical Research, Kyoto University called Gas chromatography of diisobutyrylmethane metal chelates, Author is Shigematsu, Tsunenobu; Matsui, Masakazu; Utsunomiya, Kei, the main research direction is gas chromatog metal chelates; chromatog gas metal chelates; metal chelates gas chromatog; chelates metal gas chromatog; diisobutyrylmethane chelates chromatog; cobalt diisobutyrylmethane chelates; nickel diisobutyrylmethane chelates; beryllium diisobutyrylmethane chelates; copper diisobutyrylmethane chelates; aluminum diisobutyrylmethane chelates; chromium diisobutyrylmethane chelates; iron diisobutyrylmethane chelates; lutetium diisobutyrylmethane chelates; erbium diisobutyrylmethane chelates; dysprosium diisobutyrylmethane chelates; gadolinium diisobutyrylmethane chelates; europium diisobutyrylmethane chelates; samarium diisobutyrylmethane chelates; neodymium diisobutyrylmethane chelates.Computed Properties of C9H16O2.
Diisobutyrylmethane (2,6-dimethyl-3,5-heptanedione) (HL) was prepared by a Claisen condensation. ML2, where M and m.p. are Be 79.5°, Co(II) 125.5°, Ni(II) 154.7°, Cu(II) 126.5°; ML3, where M and m.p. are Al 125.0°, Cr(III) 114.0°, Fe(III) 95.0°, Co(III) 140.0°; and ML2OH, where M and m.p. are Lu 218.5-220.2°, Er 232.5-234.0, Dy 278.0-280.5°, Gd 290.2-292.0°, Eu 294.0-295.5°, Sm 294.8-295.7°, Nd 294.5-295.5°, were prepared for gas chromatographic studies. ML2 and ML3 were prepared by mixing buffered 5% metal ion solution with HL in EtOH, except that CoL3 was prepared by adding 10% H2O2 to the 5% Co(II) mixture with HL in EtOH and refluxing 1 hr. ML2OH were prepared by the method of G. S. Hammond, et al. (1963). Gas chromatog. was carried out on a 5 weight % high-vacuum silicone grease/Chromasorb W column, with He carrier gas and a thermal conductivity detector. The chelates were characterized also by elemental anal., ir spectroscopy, and thermogravimetric anal. (TGA). Good gas chromatograms were obtained for ML2 and ML3, except for CoL3, which was partially decomposed TGA curves of ML2 and ML3 gave the decreasing order of volatility as Be > Fe > Cu > Co(II) > Co(III) > Cr(III) > Al > Ni, which corresponded with the order of retention times, except that Fe and Al were interchanged. ML2OH were not eluted at 200-70°, except when M = Lu and Er, in which case the chelates were eluted at column temperatures of 200-50°. Apparently, HL is generally unsuitable for the gas chromatog. of rare earth metals.
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Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica