NMR: [.sup.1]H NMR ([DMSO-d.sub.6], 300 MHz,): [delta]=6.60-7.25 (m, 7H, aromatic benzene and
thiophene), 4.82 (s, 1H, ethylene), 4.90-5.92 (s, 2H, methine), 3.35 (s, 2H, methylene).
In the present study, 4% articaine showed better results as compared to that of 2% lidocaine due to following reason: increased lipid solubility,
thiophene ring, increased protein binding which increases duration of action.
Synthesis and antibacterial activity of some new thiazole and
thiophene derivatives.
3.a exhibits the catalytic behavior of the diverse catalytic precursors calcined at different temperatures in the HDS reaction of
thiophene compared with a commercial CoMo/[gamma]-[Al.sub.2][O.sub.3] catalyst.
6, during the treatment, the feed composed of n-heptane and
thiophene permeated through the hollow fiber membrane chromatography by a peristaltic pump in a continuous manner, and the inlet sulfur concentration was 200 mg [L.sup.-1].
Sopbue et al., "Antibacterial and cytotoxic activities and SAR of some Azo compounds containing
thiophene backbone," Pharmacologia, vol.
In a typical synthesis of polythiophene Pdots (Scheme 1), a solution of 10 ml of 1.0 M anhydrous Fe[Cl.sub.3] in anhydrous acetonitrile is added via syringe to a magnetically stirred solution of
thiophene monomer (1 ml, 12.5 mmol) in anhydrous acetonitrile (60 ml) in a flask that is continuously purged with nitrogen.
This is presumably caused by two reasons: on the one hand, the torsion angle between the DPI and
thiophene is smaller than BPI and
thiophene (vide infra), leading to favorable charge transfer from the donor unit to the acceptor unit; on the other hand, the electron-donating ability of DPI is stronger than that of BPI due to the fact that four aromatic rings in the former are more propitious to conjugate extension.
In this paper, we explored the results deriving from an apparently simple variation on a bithiophene structure, evidencing that the proposed modification on the
thiophene rings allows obtaining a more stable and more efficient sensoring device.
The
thiophene ring mimicked the phenyl ring of pTyr which provided [pi]-[pi] interactions with Tyr46 and Phe182.
van Santen, "Periodic trends in hydrotreating catalysis:
thiophene hydrodesulfurization over carbon-supported 4d transition metal sulfides," Journal of Catalysis, vol.
There are also numerous researches about the use of intrinsically conductive polymers for smart material applications, from which the systems based on
thiophene derivatives and its composites, such as alkylthiophenes and poly(3,4-ethylenedioxythiophene) polystyrene sulphonate, respectively, seem to be most promising [9].
