in N,N-dimethyl-formamide 1 h; Heating; Yield given;
参考文献
Litvinenko, S. V.; Volovenko, Yu. M.; Babichev, F. S.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1993 , vol. 29, # 3 p. 307 - 312
Khimiya Geterotsiklicheskikh Soedinenii, 1993 , # 3 p. 367 - 373