sulfuric acid; nitric acid in chloroform T=42°C; Yield given. Yields of byproduct given. Title compound not separated from byproducts;
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Butenko, L. N.; Novakov, I. A.; Radchenko, S. S.; Kuznechikov, O. A.; Oglodina, T. Yu.; et al.
Bull. Russ. Acad. Sci. Div. Chem. Sci. (Engl. Transl.), 1992 , vol. 41, # 7.2 p. 1612 - 1615,1244 - 1246
1: With Al2Br7(1-)*CBr3(1+) in 1,1-dibromomethane T=20°C; P=760.051 Torr; 0.75 h; 2: With water in 1,1-dibromomethane Cooling; chemoselective reaction;
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Akhrem, Irena S.; Avetisyan, Dzhul'Etta V.; Afanas'Eva, Luidmila V.
Tetrahedron Letters, 2012 , vol. 53, # 27 p. 3493 - 3496