(i) aq. HCl, NaNO2, (ii) aq. HCl, CuCl; Multistep reaction;
参考文献
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), , p. 786 - 789
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, , # 5 p. 806 - 810