Sign in to download full-size image Figure 13.4.Titration of NO solution using myoglobin. Electronic absorption spectra, in the UV-visible domain, of horse heart deoxy MbFe at a concentration of 5.73μM(1ml), upon saturation with NO by the addition of 1, 2, 4, 5, 7, and 8μl from...
According to the results, it was concluded that polar aprotic DMSO solvent stabilizes the enol form, and 2a completely exists in the enol tautomer in pure DMSO. Table 3. Photophysical data of the compounds 1a–3a at room temperature. Comp.MediaUV–Vis Absorptionb FL EmissionStokes shift (nm)...
Full size image According to literature49,56,57,58,59,60,61,62,63,64,65, the proposed reaction mechanism take places by complexation of the (S,aS,S)-biphenyl BOX ligand 1a with Cu (I) to form the chiral catalyst, which is assumed that mainly coordinated with cyclohexene (Scheme 3). ...
Reaction of debrisoquine and 4-hydroxydebrisoquine with hexafluoroacetylacetone to form pyrimidinyltetrahydroisoquinolines is used as the basis for a gas chromatographic mass spectrometric assay for these two compounds. The electron impact, positive ion chemical ionization and electron capture negative ion...
Full size image Results Ex vivo and in vivo studies on the biotransformation of MeHg First, we determined whether MeHg reacted with RSS in intestinal lumen to form (MeHg)2S. (MeHg)2S was produced by the incubation of MeHg (200 µM) in the mouse distal colon (but not in the duodenum...
When put in a solution, water molecules form acceptor/donor interactions with the inhibitors, and the inhibitor's solubility is determined by its ability to form hydrogen bonds [86]. Fig. 13 σ-profile of the P1 and P2 inhibitors Full size image Theoretical studies offer valuable insights into...
V. Kanagarajan is grateful to the Council of Scientific and Industrial Research (CSIR), New Delhi, India, for providing financial support in the form of CSIR-Senior Research Fellowship (SRF) in Organic Chemistry. M. R. Ezhilarasi is thankful to Cavin Kare Research Centre, Chennai, for ...
tometer equipped withgraphite monochromatized Mo Karadiation (k = 0.71073 Å). The structure was solved by direct methods and refined by full-matrix least-squares on F 2 using SHELXL 97 program [12]. For complex 1, a suitable sample of size 0.20 Â 0.16 Â 0.15 mm 3 was chosen...
Chiral N,O pyridine alcohols HL were used to form complexes with copper(II) ions. Three complexes, with formula [Cu(L)2], were isolated. Two crystal structures are described. Copper complexes formed in situ were found to be active catalysts for asymmetric catalysis. Keywords Copper; Pyridyl...
Firstly, the D-penicillamine reacts with benzaldehyde derivatives to form the ring thiazolidine-4-carboxylic acid(A1-A6) and yield well [34]. The thiazolidine ring product has a mixture of diastereomers, the C2 − (2R, 4R) −Cis and C2– (2S, 4R) Trans, which cannot be separated....