A 500 [micro]L aliquot of aqueous phase was mixed with equal amount (500 [micro]L) of acetonitrile : isobutanol: pyridine (5:3:2v/v) and 60 [micro]L isobutyl
95 (6H, d, J = 8 Hz, -[(C[H.sub.3]).sub.2]), 1.85-2.07 (1H, m, -CH-), 2.55 (2H, d, J = 8 Hz, -C[H.sub.2]-); [sup.13]C NMR (100 MHz, CD[Cl.sub.3], ppm): d 187.51 (C-1), 126.23 (C-2), 132.74 (C-3), 129.17 (C-2' and C6'), 129.88 (C-3 ' and C-5 '), 134.61 (C-1'), 146.97 (C-4 '), 129.51 (C-2"), 112.56 (C-3"), 108.26 (C-4"), 119.39 (C-5"), 23.12 (-C[H.sub.3], C of isobutyl
group at C-4"), 30.63 (-CH-, C of isobutyl
group at C-4 "), 47.99 (-C[H.sub.2]-, C of isobutyl
group at C-4 "); MS (m/z, %): 299.1 (M + 1, 99.16); Anal.
Among alcohols, isoamyl and phenethyl alcohols were unaffected, isobutyl
alcohol decreased, and 1-heptanol was present only in 2012.
The NMR spectrum of pure POSS shows two signals at -142.8 and -79.5 ppm, which correspond to Si atom bonded to isobutyl
group and that bonded to propylacrylate group, respectively.
Solutions of epoxy and acrylic resins were obtained by dissolving the resins in a mixture of solvents (methyl isobutyl
ketone:xylene:l-methoxy-2-propanol 50:30:20 w/w (13)).
The results showed that the concentration of isobutyl
acetate in the model apple juice matrix was impacted by sucrose and fructose concentrations, while the butyl acetate concentration was affected only by fructose.
Ethyl lactate, ethyl acetate, ethyl butyrate and isobutyl
acetate were the esters identified in Obushera (Table 5).
tuberculatum were isolated several amides, mainly bearing isobutyl
, pyrrolidine, dihydropyridone and piperidine moieties (Navickiene et al.
Pipelines will also be able to find other products to fill up their assets such as isobutyl
, he said.
The ratings reflect Vinati Organics' leading market position in the business of Isobutyl
Benzene (IBB) and 2-Acryalmido 2-Methyl Propane Sulfonic (ATBS/AMPS) acid; technical collaborations with leading institutions and long-term sales arrangements with its customers, who are leading players in the chemical industry.
Supply of (a) 20 tons ethyl glycol, (b) 20 tons butyl glycol, (c) 20 tons isobutyl
alcohol & (d) 20 tons cyclo hexanon in 4 lots.
Setting aside the retrovirus orthodoxy, he immediately identifies one of the major culprits as nitric oxide, which was used by many in the male homosexual community in the form of inhaled amyl, butyl, and isobutyl