Formation pathway of various oxygenated compounds for the homogeneous oxidation of isopentane in the vapor phase

The homogeneous oxidation of isopentane was studied in the vapor phase. The main products were oxygenated compounds (3-methyltetrahydrofuran, 2-propyloxirane, 2-ethyl-2-methyloxirane, 2,2,3-trimethyloxirane, acetone, and acetaldehyde) and isopentenes. The yields of oxygenated compounds and isopentenes depended on the residence time, indicating that the oxygenated compounds formed through isopentenes from isopentane. In the the vapor-phase oxidation of isopentenes (3-methyl-1-butene, 2-methyl-2-butene, and 2-methyl-1-butene), 3-methyltetrahydrofuran and 2-propyloxirane might be formed through 3-methyl-1-butene, 2,2,3-trimethyloxirane, and acetone through 2-methyl-2-butene, and 2-ethyl-2-methyloxirane through 2-methyl-1-butene in the vapor-phase oxidation of isopentane.