Attempts to prepare aromatic O-acyl-hydroxylamines—I: Dehydrohalogenation of 1-bromo-4-acetoxyimino-1, 2, 3, 4-tetrahydrophenanthrene by tetramethylammonium …
The dehydrohalogenation of 1-bromo-4-acetoxyimino-1, 2, 3, 4-tetrahydrophenanthrene by tetramethylammonium dimethylphosphate gave a mixture of products. Ten of these were identified and together account for 70% of the total yield. The proposed reaction mechanism implicates the corresponding O-acetyl-hydroxylamine 15 as an intermediate. Attempts to prepare O-esters or O-ethers of aromatic hydroxylamines by dehydrogenation, with ...
