Synthesis of symmetrical N,N '-disubstituted thioureas and heterocyclic thiones from amines and CS2 over a ZnO/Al2O3 composite as heterogeneous and reusable catalyst
M. Ballabeni et al., Synthesis of symmetrical N,N '-disubstituted thioureas and heterocyclic thiones from amines and CS2 over a ZnO/Al2O3 composite as heterogeneous and reusable catalyst, J ORG CHEM, 64(3), 1999, pp. 1029-1032