methanol; bromine; triethylamine in benzene (dry Ar); stirred 1 h at 5°C; heated for 5 min at 60°C; cooled; added Et3N and MeOH in 30 min at 20°C; stirred 30 min; solvent distd.; residue treated isopentane; ppt. Et3N*HBr filtered; filtrat distn.; elem. anal.;
参考文献
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), , vol. 29, # 5 p. 813 - 820
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, , # 5 p. 1106 - 1113
