Methyl-l-nitronaphthalene

IX-L-8.3. Photolysis Frequencies for the Photodecomposition of 2-Methyl-l-nitronaphthalene in the Lower Troposphere... 

Arey, J., R. Atkinson, S.M. Aschmann, and D. Schuetzle (1990b), Experimental investigation of the atmospheric chemistry of 2-methyl-l-nitronaphthalene and a comparison of predicted nitroarene concentrations with ambient air data. Polycyclic Aromatic Compounds, 1, 33-50. 

Nitro-2-methyl-1,3-propanediol, 12 2-Nitro-2-methyl-l-propanol, 12 2-Nitronaphthalene, 329 Nitronium tetraiiuoroborate, 296-297 p-NitrophenoI, 29, 176, 297 p-Nitrophenyl acetate, 297 p-Nitrophenyl azide, 333 p-Nitrophenyl chloroformate, 142, 297-298 p-Nitrophenyl esters, 297 p-Nitrophenylindazole, 334 p-NitrophenyIthymidine-3 -carbonate, 297,... 

The rate coefficients for the reaction of OH with 1- and 2-nitronaphthalene have been measured by Atkinson et al. (1989b) at 298 K and atmospheric pressure of air by a relative rate method. Arey et al. (1990b) have investigated the reaction of OH with 2-methyl-1-nitronaphthalene, where they have also used a relative rate method at atmospheric pressure and ambient temperature see table VIII-L-5. 

Arey et al. have derived an upper limit to the reaction of OH with 2-methyl-1-nitronaphthalene for which photolysis was found to be the dominant loss process (see section IX-L-6). 

The experiments conducted by Atkinson et al. (1989b) did not show any measurable reaction between O3 and 1- and 2-nitronaphthalene. Similarly, the study of Arey et al. (1990b) reported only an upper limit to the rate coefficient of the reaction of O3 with 2-methyl-1-nitronaphthalene. The measurements were conducted by following the decay of the nitroarenes in the presence of excess O3 (in the presence of cyclohexane to act as scavenger for OH radicals if formed). The upper limits obtained by Atkinson et al. (1989b) and Arey et al. (1990b) are given in table Vin-L-7. 

Figure IX-L-IS. Cross sections for 2-methyl-1-nitronaphthalene as measured in ethanol solution by Ldng (1961-1971).

The absorption spectmm of 2-methyl-1-nitronaphthalene is given in figure IX-L-15 as was reported by Lang (1961-1971) in ethanol solution. The absorption cross sections for wavelengths of sunlight present within the troposphere are summarized in table IX-L-8. 

Fio, 15. Correlation of solvent selectivity effects with solvent-solute localization and Eq. (31a) (a) alumina, different solute pairs for each plot, 18 different polar solvents (b) silica, as in (a), except ternary- and quaternary-solvent mixtures used localizing agent , MTBE , ACN (O) chloroform or dichloromethane. The solute pairs are as follows (a) 1—1-naphthaldehyde and 1-cyanonaphthalene 2—1-nitronaphthalene and 1,2-dimeth-oxynaphthalene 3—1,5-dinitronaphthalene and 1-acetylnaphthalene (b) I—1-nitronaphthalene and 2-methoxynaphthalene 2—1,5-dinitronaphthalene and 1,2-dimethoxynaphtha-lene 3—methyl l-naphthoate and 2-naphthaldehyde. Reprinted from Snyder< f /. (/J. /it). 

Moreover, when the dinitronaphthalenes 70 and 71 reacted with isopaene (60°C, 24 h) in the presence of EAN or [HMIM][BF4], they generated a mixture of phenanthrenes and N-naphthylpyrroles with different 5deld ratios and a moderate predominance of the normal DA product. In the case of 1,3-dinitronaphthalene 70, newly a clear tendency towards the DA cycloaddition to the C3-C4 bond was observed. In the reactions with isoprene, 1,3-dinitronaphthalene gave the corresponding 2-metil-lO-nitro-phenanthrene (32%), together with [3-methyl-l-(l-nitronaphthalen-3-yl)-pyrrole] and [3-methyl-l-(2-nitronaphthalen-4-yl)-pyrrole]. On the other hand, the reactions of 1,4-dinitronaphthalene with isoprene afforded 2-methyl-9-nitrophenantrene (27%) and 3-methyl-l-(4 -nitronaphtalene-l -iy)-pyrrole. 

Nitronaphthalene-l-snlfonamide 2-Hydroxynaphthalene-1,6-disulfonanilide 3,S-Dichloro-4-methyl-benzene sulfonamide Snlfapyridine... 

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