1: 2-Bromo-3-iodothiophene With ethyl magnesium chloride in tetrahydrofuran T=15°C; 0.25 h; 2: [(Cyanocarbonyl)oxy]ethane in tetrahydrofuran T=20 - 25°C; 0.5 h; Title compound not separated from byproducts;
参考文献
Journal of Organic Chemistry, , vol. 68, # 24 p. 9513 - 9516
aluminium trichloride; sulfuric acid 1.) CH2Cl2, a) reflux, 1 h, b) RT, 3 h, 2.) reflux; Yield given. Multistep reaction;
参考文献
Chemistry of Heterocyclic Compounds (New York, NY, United States), , vol. 29, # 8 p. 889 - 891
Khimiya Geterotsiklicheskikh Soedinenii, , # 8 p. 1046 - 1048
