hydrogen; palladium on activated charcoal T=200°C; Title compound not separated from byproducts;
参考文献
Chemistry of Heterocyclic Compounds (New York, NY, United States), , vol. 26, # 11 p. 1214 - 1218
Khimiya Geterotsiklicheskikh Soedinenii, , vol. 26, # 11 p. 1460 - 1464