74734-06-8

Upstream product

• 42975-31-5 2-benzimidazolethione potassium salt 
• 103-71-9 phenyl isocyanate 
• 74734-02-4 methyl benzimidazol-2-yl tri-thiocarbonate 
• 463-71-8 thiophosgene 
• 87504-25-4 N-(2-aminophenyl)-N'-phenylharnstoff 
• 57709-64-5 N¹-(2-aminophenyl)-N²-phenylurea 

Relevant academic research and scientific papers

Acylation of Heterocycles with Carbonic Acid Derivatives. VII. Synthesis of Benzimidazolo(1,3,5)thiadiazines

Carbamoyl-, Thiocarbamoyl- und Iminocarbamoyl-benzimidazolinthione-2 sind geeignete Startverbindungen fuer die Synthese von benzokondensierten Imidazolo-1,3,5-thiadiazinen.Fuer spektroskopische Untersuchungen benoetigten wir eine vollstaendige Serie carbonylanaloger Benzimidazolo(1,3,5)thiadiazine, ueber deren Darstellung berichtet werden soll.

Synthesis of Thiadiazinobenzimidazole-2,4(3H)-diones and their Sulphur Analogues

Benzimidazol-2-yl di- or tri-thiocarbonates and iso- or isothio-cyanates give, on heating in the presence of triethylamine, the novel thiadiazinobenzimidazole-2,4(3H)-diones (11; X=Y=O) or their sulphur analogues (11; X=S, Y=O; or X=Y=S).