1: With lithium hexamethyldisilazane in tetrahydrofuran T=-78°C; 0.75 h; Inert atmosphere; 2: With trifluoromethylsulfonic anhydride in tetrahydrofuran T=-78°C; 1.25 h; Ineret atmosphere; Further stages;
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Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1980 , vol. 29, # 9 p. 1493 - 1499
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Shapiro, E. A.; Dolgii, I. E.; Nefedov, O. M.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1980 , vol. 29, # 9 p. 1493 - 1499
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1980 , # 9 p. 2096 - 2102
