Synthesis and some transformations of polybrominated quinone diazides
作者:V. A. Vasin、M. V. Fadin、I. V. Tarasova
DOI:10.1134/s1070428017120053
日期:2017.12
The reduction of polybrominated o- and p-nitrophenols with granular tin in concentrated aqueous HCl gave polybrominated aminophenols which were diazotized with sodium nitrite in concentrated sulfuric acid at 0°C to obtain polybrominated o- and p-quinone diazides. Their thermolysis with elimination of nitrogen generated ketocarbenes which reacted with acetylacetone to form insertion products at the