Alkylation 830 INDEX

DPEP/etio Weighted av. mass (X) Band width (o-) Alkylation index (AI) Mode ... 

Relative stabilities and reactivities of the two metalloporphyrins can be observed by comparison of the parameters. The alkylation index shows that vanadyl chelation promotes transalkylation relative to nickel. On the other hand, nickel porphyrins are degraded more rapidly through the loss of metiiylene groups and/or etio series generation than vanadyl porphyrins. These differences between the two chelates are best observed by comparison of the series mode and weighted average mass shown in Table IV. 

Betso, J.E., Carreon, R.E. and Miner, V.M. (1991) The use of proton nuclear magnetic resonance spectrometry ( H NMR) for monitoring the reaction of epoxides with butylamine and predictive capabilities of the relative alkylation index (RAI) for skin sensitization by epoxides. Toxicol. Appl. Pharm., 108, 483—488. 

Roberts, D.W., fraginals, R., Lepoittevin, J.-P. and Benezra, C. (1991) Refinement of the relative alkylation index (RAI) model for skin sensitization and application to mouse and guinea-pig test data for alkyl alkanesulphonates. Archives of Dermatological Research, 283, 387—394. 

Alkylated aromatics have excellent low temperature fluidity and low pour points. The viscosity indexes are lower than most mineral oils. These materials are less volatile than comparably viscous mineral oils, and more stable to high temperatures, hydrolysis, and nuclear radiation. Oxidation stabihty depends strongly on the stmcture of the alkyl groups (10). However it is difficult to incorporate inhibitors and the lubrication properties of specific stmctures maybe poor. The alkylated aromatics also are compatible with mineral oils and systems designed for mineral oils (see Benzene Toulene Xylenes and ethylbenzene). ... 

Physical Properties. Properties of some alkyl peroxyesters are Hsted in Table 13 and the properties of some alkyl areneperoxysulfonates are given in Table 14. Mass spectra (226), total energies, and dipole moments (227) oxygen—oxygen bond-dissociation energies (44,228) and boiling points, melting points, densities, and refractive indexes (44,168,213) have been reported for a variety of tert-huty peroxycarboxylates. 

An Index to types of reactions, e.g. alkylations, stereoselective reductions, cyclizations etc. and... 

Both common and systematic names of compounds are used throughout this volume, depending on which the Editor-in-Chief feels is most appropriate. Preparations appear in the alphabetical order of names of the compound or names of the synthetic procedures. The Chemical Abstracts indexing name for each title compound, if it differs from the title name, is given as a subtitle. Because of the major shift to new systematic nomenclature adopted by Chemical Abstracts in 1972, many common names used in the text are immediately followed by the bracketed, new names. Whenever two names are concurrently in use, the carre CChemical Abstracts name is adopted. The prefix n- is deleted from -alkanes and w-alkyls. All reported dimensions are now expressed in S st me International units. 

Esters derived from the acid function are also named using the ending -onate . The name of the alkyl (aryl, etc.) group is given before the aldonate name. Alternative periphrase names like aldonic acid alkyl (aryl, etc.) ester may be suitable for an index. 

On the other hand, comparative analysis of Fi variables gave the relative reduction of SOS-response in preincubated with AR bacterial cells (Table 3). So, repression SOS-response was proportionally to the length of the AR alkyl radical and was Fi = 3.7 (for Ce-AR) and Fi = 7.0 (for C12-AR) that 76.43-40.40 fold lower than the SOS-system activation level in cells exposured only by UV radiation. With reduction of the AR concentration to lO- M is still observed statistically significant differences in the values of induction index (Fi) of the control and experimental samples, although the repression of SOS-response was less expressed. An increase of the AR concentration up to 1(>3 M in the case of Ci-AR and C3-AR led to some suppression, and for the C5-, Ca- and C12-AR to increase the values of R. 

Examples of alkylation, dealkylation, homologation, isomerization, and transposition are found in Sections 1,17,33, and so on, lying close to a diagonal of the index. These sections correspond to such topics as the preparation of alkynes from alkynes carboxylic acids from carboxylic acids and... 

Smith, R. M. and Finn, N., Comparison of retention index scales based on alkyl aryl ketones, alkan-2-ones and 1-nitroalkanes for polar drugs on re-versed-phase high-performance liquid chromatography,. Chromatogr., 537, 51,1991. 

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