Oxidation of nitrobenzylic carbanions with dimethyldioxirane. new synthesis of quinomethanes and nitrobenzylic carbinols. First examples of methylation of carbanions with dimethyldioxirane.
The reaction of nitrobenzylic carbanions with dimethyldioxirane (DMD) results in oxidation at the carbanion center or at the nitronate center to give nitrobenzylic carbinols or quinomethanes, respectively. Minor amounts of the methylation products are also formed. Both of these processes were observed for carbanions of (p-nitroaryl)diarylmethanes. The outcome of the oxidation process is very sensitive to the reaction conditions.
Makosza
M
M
Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
Adam
W
W
Zhao
C G
CG
Surowiec
M
M