Abstract
A report is presented of results on the palladium (II)-mediated oxidation of arenes and alkanes through a nonradical, electrophilic C-H activation pathway. Information concerning the mechanism of the Pd(II) oxidation of hydrocarbons was obtained through the study of arene oxidations which were also performed at 80°C with use of Pd (O2CMe)2 in CF3CO2H. Under these conditions, the monotrifluoroacetoxylation of 1 equiv of p-dimethoxybenzene proceeded to completion in 1 h. (12). Under identical conditions, monotrifluoroacetate esters of p-xylene (0.1) toluene (0.02, benzene (0). For p-xylene and toluene, attack on the ring rather than the benzylic position accounted for >97% and 90%, respectively, of the monotrifluoroacetate esters obtained. This result is in sharp contrast to that reported for the PtCl42-mediated H-D exchange reaction where para-disubstituted benzenes to not exchange ring hydrogens at all.
Original language | English (US) |
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Pages (from-to) | 460-462 |
Number of pages | 3 |
Journal | American Chemical Society, Division of Petroleum Chemistry, Preprints |
Volume | 33 |
Issue number | 3 |
State | Published - Aug 1 1988 |
Event | Symposium on Direct Conversion of Methane to Higher Homologues - Los Angeles, CA, USA Duration: Sep 28 1988 → Sep 30 1988 |
All Science Journal Classification (ASJC) codes
- Fuel Technology