By use of blocked ortho-positions in the starting 2-nitrenoaryl aryl ethers, the first successful conversions of these into phenoxazines and 5,11-dihydrodibenzo[b,e][1,4]oxazepines have been achieved.
通过在起始的2-nitreno芳基芳基醚中使用封闭的邻位,已成功将它们成功转化为
吩恶嗪和5,11-二氢二苯并[ b,e ] [1,4]氧杂ze庚因。