Chretien

Maaloum M, Chretien D, Karsenti E and FIdrber J K FI 1994 Approaching microtubule structure with the scanning tunnelling microscope (STM) J. Ceii Sc/. 107 part II 3127... 

Bessiere-Chretien, M., 3, 462, 474 (74JHC317) Bessiere-Chretien, Y., 3, 474 (73BSF2039)... 

Berthod F, Saintigny G, Chretien F, Hayek D, CoUombel C, Damour O (1994) Clin Mater 15 259... 

For comparison, a classical Ritchey-Chretien solution of similar dimensions would offer about 20 arc seconds diffraction-limited field of view. 

Landry, J., Chretien, P., Laszio, A., Lambert, H. (1991). Phosphorylation of hsp27 during development and decay of thermotolerance in Chinese hamster cells. J. Cell Physiol. 147,93-101. 

Lazaris, A., Arcidiacono, S., Huang, Y., Zhou, J.F., Duguay, F., Chretien, N., Welsh, E.A., Soares, J.W., and Karatzas, C.N., Spider silk fibers spun from soluble recombinant silk produced in mammalian cells. Science, 295(5554), 472- 76, 2002. 

G., Folkers, G., Chretien, J. R., Raevsky, 0. A. Estimation of blood-brain barrier crossing of drugs using molecular size and shape, and H-bonding descriptors. f Drug Target. 1998, 2,151-165. 

Salahub, D. R., Chretien, S., Milet, A., Proynov, E. I., 1999, Performance of Density Functionals for Transition States in Transition State Modeling for Catalysis, Truhlar, D. G., Morokuma, K. (eds.), ACS Symp. Ser., 721, American Chemical Society, Washington, D. C. 

Trinquet E, Fink M, Bazin H, Grillet F, Maurin F, Bourrier E, Ansanay H, Leroy C, Michaud A, Durroux T, Maurel D, Malhaire F, Goudet C, Pin JP, Naval M, Hemout O, Chretien F, Chapleur Y, Mathis G (2006) Anal Biochem 385 126... 

Marcinkiewicz, M., Morcos, R. Chretien, M. (1989). CNS connections with the median raphe nucleus retrograde tracing with WGA-apoHRP-gold complex in the rat. J. Comp. Neurol. 289, 11-35. 

Brais B, Bouchard ]P, Xie YG, Rochefort DL, Chretien N, Tome FM, Lafre-niere RG, Rommens JM, Uyama E, No-hira O, Blumen S, Korczyn AD, Heu-tink P, Mathieu J, Duranceau A, Co-dere F, Fardeau M, Rouleau GA, Kor-cyn AD. Nature Genet 1998 18 164-167. 

For the methyl-substituted ethylenes, i.e. in the absence of any steric effects, there is a roughly linear relationship between the chemoselectivity and the 13C nmr chemical shift of the most substituted carbon atom of the bromonium ions (Dubois and Chretien, 1978). This selectivity is therefore discussed in terms of the magnitude of the charge on the carbon atom and the relative hardness of the competing nucleophiles, according to Pearson s theory (Ho, 1977). However, this interpretation does not take into account the substituent dependence of the nucleophilic solvent assistance, which must play a role in determining this chemoselectivity. 

To summarize, when the kinetic data predict that only bromonium ions or only bromocarbocations are formed, the bromination products are obtained stereospecifically and regiospecifically, respectively, whatever the solvent. Olefin brominations involving open intermediates lead to more solvent-incorporated products in methanol or acetic acid than those involving bridged ions. This chemoselectivity can be interpreted in terms of the hard and soft acid and base theory (Dubois and Chretien, 1978). Methanol assistance to intermediate formation also plays a role in determining product-selectivity (Ruasse et al, 1991). 

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