Temperature dependence of pentyl nitrate formation from the reaction of pentyl peroxy radicals with NO
作者:Paola Cassanelli、David J. Fox、R. Anthony Cox
DOI:10.1039/b700285h
日期:——
Alkyl nitrate yields from the reaction of 1-pentyl, 2-pentyl and 2-methyl-2-butyl peroxy radicals with NO have been determined over the temperature range (261-305 K) and at 1 bar pressure from the photo-oxidation of the iodoalkane precursors in air-NO mixtures. Yields were observed to increase with decreasing temperature and, contrary to previous observations, along the series primary < secondary congruent
Michael; Carlson, Journal of the American Chemical Society, 1935, vol. 57, p. 1270,1275
作者:Michael、Carlson
DOI:——
日期:——
Thermal decomposition of nitrate esters
作者:Michael A. Hiskey、Kay R. Brower、Jimmie C. Oxley
DOI:10.1021/j100163a013
日期:1991.5
Rates of thermal decomposition and solvent rate effects have been measured for a series of nitrate esters. The alkoxy radicals formed by homolysis together with some of their further degradation products have been stabilized by hydrogen donation. Internal and external return of nitrogen dioxide have been demonstrated by solvent cage effects and isotope exchange. Radical-stabilizing substituents favor beta-scission. Dinitrates in a 1,5 relationship behave as isolated mononitrates. Dinitrates in a 1,3 or 1,4 relationship exhibit intramolecular reactions. Tertiary nitrate esters in diethyl ether undergo elimination rather than homolysis.
Nitration studies. XVI. Conversion of nitrite and nitrate esters in nitro alkanes
作者:G. Bryant Bachman、Neil W. Connon
DOI:10.1021/jo01264a078
日期:1969.12
Reaction of the Nitrate Radical with Some Potential Automotive Fuel Additives. A Kinetic and Mechanistic Study
作者:Sarka Langer、Evert Ljungstroem
DOI:10.1021/j100074a015
日期:1994.6
Rate coefficients for the reaction of NO3 with ethyl tert-butyl ether (ETBE), diisopropyl ether (DIPE), and tert-amyl methyl ether (TAME) have been determined. Absolute rates were measured at temperatures between 257 and 367 K using the fast flow-discharge (FFD) technique. Relative rate experiments were also performed at 295 K in a reactor equipped with White optics and using FTIR spectroscopy to follow the reactions. Rate data from FFD experiments can be presented as follows: k(ETBE) = (2.48 +/- 0.78) X 10(-12) exp [-(1613 +/- 542)/T], k(DIPE) = (2.02 +/- 0.35) X 10(-12) exp [-(1759 +/- 301)/T], and k(TAME) = (1.21 +/- 0.22) X 10(-12) exp [-(1874 +/- 304)/T] (in units of cm(3) molecule(-1) s(-1)). The rate coefficients at room temperature from the FFD experiments are in goad agreement with the corresponding rate coefficients from the relative rate experiments. Products from simulated atmospheric oxidation of the investigated ethers, initiated by the reaction with the nitrate radical, were identified using FTIR spectroscopy. The degradation of ETBE results in tert-butyl formate, tert-butyl acetate, formaldehyde, and methyl nitrate, that of DIPE in acetone, isopropyl nitrate, isopropyl acetate, and formaldehyde, and that of TAME in tert-amyl formate, formaldehyde, and tert-amyl nitrate.