Untersuchungen an 1,3-Thiazinen, 15. Mitt. Neue Synthese für N-substituierte Tetrahydro-1,3-thiazin-2-thione
作者:Wolfgang Hanefeld、Erdogan Bercin
DOI:10.1002/ardp.19813140507
日期:——
Einneuer, für N‐Arylverbindungen mit guten Ausbeuten verlaufender Syntheseweg für N‐substituierte Tetrahydro‐1,3‐thiazin‐2‐thione 5, bestehend in der Schwefelkohlenstoffspaltung von N,N'‐disubstituierten 2‐Imino‐tetrahydro‐1,3‐thiazinen 3 zu 5 und Isothiocyanaten 6, wird vorgestellt.
The Preparation of Cyclic Dithia and Thiaza Compounds by the Reaction of Potassium Carbonate with Heterocumulenes and Alkylene Dibromides or Carbonate Catalyzed by Organostannyl Compounds
3-dithia- and 1,3-thiaza-2-ylidene compounds were obtained by the heterogeneous reaction of solid potassium carbonate, a sulfur-containing heterocumulene, such as aryl isothiocyanate, carbon disulfide, or carbonyl sulfide, and alkylene dibromides or ethylene carbonate in the presence of bis(tributylstannyl) compounds. The effect of an organostannyl catalyst on these reactions is discussed.