1: SOCl2 / 1).reflux, 4 hrs., 2).-15 deg C, 40 min., than temp. was raised to r.t. during 20 min.
2: 75 percent / 10percent HCl, H2O / 0.58 h / Ambient temperature
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参考文献
Chapyshev, S.V.; Kartsev, V.G.; Sipyagin, A.M.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1983 , vol. 19, p. 882 - 886
Khimiya Geterotsiklicheskikh Soedinenii, 1983 , vol. 19, # 8 p. 1098 - 1102
