Pyridines suppl

E. Klinsberg (ed,). Pyridine and its Derivatives, in Chemistry of Heterocyclic Compounds, suppl. 1-4, ed, A. Weissberger and E, C, Taylor, Wiley-Interscience, New York, 1960-1964. 

V, T, Andriole (ed.). The Quinoitmes Academic Press, London. 1988. C. D, Johnson. Bicycik Cotttpotinds coniaining a Pyridine Ring QuinoUne and its Derivatives, in RoihTs Chemistry of Carinm Comptmnds. 2nd edn.. 2nd suppL. vol. F/G, chap. 26, ed, M. Sainsbury. Elsevier, Amsterdam. 1998. 

Kaul, K.L. Novak, R.F. (1987) Inhibition and induction of rabbit liver microsomal cytochrome P-450 by pyridine. J. Pharmacol, exp. Ther., 243, 384-390 Kerckaert, G.A., Brauninger, R., LeBoeuf, R.A. Isfort, R.J. (1996) Use of the Syrian hamster cell transformation assay for carcinogenicity prediction of chemicals currently being tested by the National Toxicology Program in rodent bioassays. Environ. Health Perspect, 104 (Suppl. 5), 1075-1084... 

The 13C-NMR spectra of l-arylbenzo[c]pyrylium salts have been investigated in comparison with those of 1-arylnaphthalenes, N-methyliso-quinolinium, and 1-arylisoquinoline derivatives 75ZN(B)943]. The correlation obtained is analogous to relationships found for a series of pyrylium and pyridinium salts, and pyridine derivatives [82AHC(Suppl)]. The, 3C shifts of 1 -aryl-benzo[c]pyrylium salts are also a valuable source of information for ptfa values, aromatic character, and conjugative effects of these compounds (760MR324). 

In the solid state, compounds (R = phenyl) are in their NH form (88JCR(S)94), which is the tautomer preferred in polar aprotic solvents (DMSO), except for compounds in which R = NHj, which always exist as the CH (B) tautomer (Section II,A,3,b). In nonpolar solvents (CDClj), mixtures of NH (A) and CH (B) tautomers are present. The value of depends on the nature of R. In basic solvents (pyridine), the common anionic form exists (Section II,B,l,a). The OH (C) tautomer, which exists in related pyrazoles in a high percentage (76AHC(Suppl)316), is not present in these thiadiazine derivatives. On the other hand, 6-substituted derivatives, which... 

Spectro H2O t = 25.0 1=0.005-0.025 to fully deprotonated D, neutral to fully deprotonated. Also reported the corresponding data for picolinic and isonicotmic acids. Jellinek HHG and Urwin JR, Ultraviolet absorption spectra and dissociation constants of picolinic, isonicotmic acids and Uieir amides, /. Phys. Chem., 58,548-550 (1954). Used glass electrode to measure pH values and recorded spectra with a Hilger Uvispek spectrophotometer. Ionic strengtti was extrapolated to zero wiBi Bie Debye-Huckel equation. Fischer A, Galloway WJ and Vau an J, Structure and reactivity in the pyridine series. I. Acid dissociation constant of pyridinium ions, /. Chem. Soc. B, 3591-3596 (1964). All data were cited in Perrin Bases no. 1076-77 Perrin Bases suppl. no. 5081. 

Mitsui T, Kimoto M, Harada Y, Sato A, Kitamura A, To T, Hirao 1, Yokoyama S (2002) Enzymatic incorporation of an unnatural base pair between 4-propynyl-pyrrole-2-carbaldehyde and 9-methyl-imidazo [(4,5)-b]pyridine into nucleic acids. Nucleic Acids Res Suppl 2 219-220... 

Bispyrazolones as azodieno-philes 22, 314 suppl. 26 Bis(pyridine)dimethyl-formamidedidilororhodium tetrahydridoborate 22,59 suppl. 26... 

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