Isothiocyanates; II1. The Addition of Arylureas to Benzoyl Isothiocyanate and the Synthesis of 5-Aryl-2-thiobiurets and 2-Aryl-5-benzoylamino-3-oxo-2, 3-dihydro-1,2,4-thiadiazoles - Basyouni, Mohamed N; El-Khamry, Abdel-Momen A; Habashy, Mohamed M; Shaban, Mohamed E; El-Adly, Mostafa M (Synthesis, 1981)