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pro vyhledávání: '"O. Yu. Poddubny"'
Publikováno v:
Russian Journal of Organic Chemistry. 56:1570-1575
Electrophilic amination of methyl N-(hydroxyphenyl)carbamates and methyl N-(4-methoxyphenyl)carbamate with sodium azide in 86% polyphosphoric acid (PPA) at 55–60°C regioselectively afforded methyl N-(3-amino-2-hydroxyphenyl)-, N-(4-amino-3-hydroxy