Patterson reaction

PBO andPBZT. PBZ, a family of/ -phenylene-heterocycHc rigid-rod and extended chain polymers includes poly(/)-phenylene-2,6-benzobisthiazole) [69794-31-6] trans-V 27V) and poly(/)-phenylene-2,6-benzobisoxazole) [60871-72-9] (ot-PBO). PBZT and PBO were initially prepared at the Air Force Materials Laboratory at Wright-Patterson Air Force Base, Dayton, Ohio. PBZT was prepared by the reaction of... 

Raisen et al, Survey of the Thermochemistry of High Energy Reactions , AF Avionics Laboratories, Wright Patterson AFB, ASD-TDR-63-846 (1963) 9) A.F. Belyaev R.Kh. Kurbanga-... 

Greenberger PA, Patterson R The prevention of immediate generalized reactions to radiocontrast media in high-risk patients. J Allergy Clin Immunol 1991 87 867-872. 

Evidence exists that the relative solubility of amines and inhibitors in heterogeneous oil-water systems could be decisive in formation of nitrosamines and blocking these reactions, Nitrosopyrrolidine formation in bacon predominates in the adipose tissue despite the fact that its precursor, proline, predominates in the lean tissue (5,6,7). Mottram and Patterson (8) partly attribute this phenomenon to the fact that the adipose tissue furnishes a medium in which nitrosation is favored, Massey, et al, (9) found that the presence of decane in a model heterogeneous system caused a 20-fold increase in rate of nitrosamine formation from lipophilic dihexylamine, but had no effect on nitrosation of hydrophilic pyrrolidine. Ascorbic acid in the presence of decane enhanced the synthesis of nitrosamines from lipophilic amines, but had no effect on nitrosation of pyrrolidine. The oil-soluble inhibitor ascorbyl palmitate had little influence on the formation of nitrosamines in the presence or absence of decane. 

Leon Billings. Sept. 8, 1997. Source for Muskie s reaction to Patterson testimony and their continued cooperation. 

The comparison with the TPD data showed that the presence of hydrogen did not affect significantly the temperature threshold for nitrate decomposition, but leads to a different product distribution. As suggested by Cant and Patterson [42], the observed product distribution can be ascribed to the occurrence of the following reactions ... 

Transfer hydrogenation in the alcohol-ketone system on metal catalysts was investigated by Patterson et al. In particular, by studying the reaction between 2-propanol and butanone on Cu they concluded that it must be a direct surface reaction (11), the mechanism being essentially a proton transfer in the adsorbed phase (Scheme 2). 

Jacobs, G., Patterson, P.M., Graham, U.M., Crawford, A.C., Dozier, A., and Davis, B.H. 2005. Catalytic links among the water-gas shift, water-assisted formic acid decomposition, and methanol steam reforming reactions over Pt-promoted thoria. J. Catal. 235 79. 

An alternative approach (e.g., Patterson, 1985 Ranade, 2002) is the Eulerian type of simulation that makes use of a CDR equation—see Eq. (13)—for each of the chemical species involved. While resolution of the turbulent flow down to the Kolmogorov length scale already is far beyond computational capabilities, one certainly has to revert to modeling the species transport in liquid systems in which the Batchelor length scale is smaller than the Kolmogorov length scale by at least one order of magnitude see Eq. (14). Hence, both in RANS simulations and in LES, species concentrations and temperature still fluctuate within a computational cell. Consequently, the description of chemical reactions and the transport of heat and species in a chemical reactor ask for subtle approaches as to the SGS fluctuations. 

GEHA R S, BEISER A, REN C, PATTERSON R, GREENBERGER P A, GRAMMER L C, DITTO A M, HARRIS K E, SHAUGHNESSY M A, YARNOLD P R, CORREN J and SAXON A (2000), Multicenter, double-blind, placebo-controlled, multiple-challenge evaluation of reported reactions to monosodium glutamate , Allergy Clin Immunol, 106(5 Pt 1), 973-80. 

McGrath KG, Zeiss R, Patterson R Allergic reactions to industrial chemicals. Clin Immunol Rev 2-.1-5, 1983... 

Respiratory Effects. Respiratory effeets due to inhalation of HDI are the subject of most of the literature on HDI toxieity, with most reports on humans based on individual case studies (Belin et al. 1981 Cockcroft and Mink 1979 Patterson et al. 1990 Vandenplas et al. 1993). One report described the case of a 56-year-old man who worked as a foreman in a garage where automobile painting was done and eonsequently was exposed intermittently to paints eontaining HDI for 5-6 years. He reported having developed respiratory and systemic reactions after exposure to paints (which contained 7% polymeric HDI) used in the garage. Episodes of shortness of breath, wheezing, malaise, and chills were reported. 

An example of this is the gold-thallium complex n[Au(CN)2] [69], prepared by reaction of T1N03 and K[Au(CN)2]-2H20 in the 90s by Patterson et al. This group carried out a pioneering study of the luminescence properties of this complex and their theoretical interpretation. The structure showed a complexity that made the analyses difficult. Thus, neutron diffraction studies showed thallium-gold interactions of 3.446 and 3.463 A, shorter than the sum of their van der Waals radii (3.62 A) in one of the three crystallographically-distinct Au sites in the crystal. 

M. B. Smith, J. March in March s Advanced Organic Chemistry, 5lh ed., John Wiley and Sons, Inc., New York, 2001, pp 1218-1213 T. Laue, A. Plagens, Named Organic Reactions, John Wiley and Sons, Inc., New York, 1998, pp. 4-10 A. T. Nielsen, W. J. Houlihan, Organic Reactions 16 (full volume) T. Mukaiyama, Organic Reactions, 28, 3 C. J. Cowden, I. Patterson Organic Reactions 51,1. 

Gaston RS, Deierhoi MH, Patterson T, Prasthofer E, et al. 1991. OKT3 first-dose reaction Association with T cell subsets and cytokine release. Kid Internat. 39 141-148. 

The H-abstraction reactions of peroxyl radicals are related to ET discussed above, as in both cases the same final product is formed, a hydroperoxide. Mechanistically, these two processes are, of course, different. Hydrogen-abstraction reactions by peroxyl radical, including H02-, are common (cf. the autoxidation of polyunsaturated lipids Hasegawa and Patterson 1978 Patterson and Hasegawa 1978 Patterson 1981 Porter et al. 1981 Gebicki and Bielski 1981 Barclay et al. 1989 Zhu and Sevilla 1990 Aikens and Dix 1991 Simic et al. 1992). This H-abstraction reaction may occur inframolecularly as well as infermolecularly [cf. reactions (29) and (30)]. 

Han P, Bartels DM (1994) Encounters of H and D atoms with 02 in water relative diffusion and reaction rates. In Gauduel Y, Rossky P (eds) AIP conference proceedings 298. "Ultrafast reaction dynamics and solvent effects." AIP Press, New York, 72 pp Hasegawa K, Patterson LK (1978) Pulse radiolysis studies in model lipid systems formation and behavior of peroxy radicals in fatty acids. Photochem Photobiol 28 817-823 Herdener M, Heigold S, Saran M, Bauer G (2000) Target cell-derived superoxide anions cause efficiency and selectivity of intercellular induction of apoptosis. Free Rad Biol Med 29 1260-1271 Hildenbrand K, Schulte-Frohlinde D (1997) Time-resolved EPR studies on the reaction rates of peroxyl radicals of polyfacrylic acid) and of calf thymus DNA with glutathione. Re-examination of a rate constant for DNA. Int J Radiat Biol 71 377-385 Howard JA (1978) Self-reactions of alkylperoxy radicals in solution (1). In Pryor WA(ed) Organic free radicals. ACS Symp Ser 69 413-432... 

Patterson LK, Bansal KM, Bogan G, Infante GA, Fendler EJ, Fendler JH (1972) Micellar effects on CI2 reactivity. Reactions with surfactants and pyrimidines. J Am Chem Soc 94 9028-9032 Paul CR, Belfi CA, Arakali AV, Box HC (1987a) Radiation damage to dinucleoside monophosphates mediated versus direct damage. Int J Radiat Biol 51 103-114 Paul CR, Arakali AV, Wallace JC, McReynolds J, Box HC (1987b) Radiation chemistry of 2 deoxycytidy-lyl-(3 5 ) -2 deoxyguanosine and its sequence isomer in N20- and 02-saturated solutions. Radiat Res 112 464-477... 

Patterson, G. K. (1986). Development of a fluorescence method for reaction conversion measurement in a turbulent mixing tank. Physicochemical Hydrodynamics. 7(1) 33-34. 

---