From 3,3-Dithiodipropionamides Type C

The use of 3,3 -dithiopropionamidine or the corresponding methyl imidate hydrochlorides as starting material similarly furnishes 3-amino- or 3-methoxy-isothiazole.  

From Phenylcysteine (Type Q.—4-Amino-3-isothiazolidinone 1,1-dioxides are of interest because they may be looked upon as a-amino-acids in which 

From Vllsmeier Salts (Type Q.—The Vilsmeier-Haak reaction has been applied to the synthesis of 2- (or 5-)substituted 4-cyanoisothiazoles (45). Thus, condensation of a Vilsmeier salt prepared from phosphorus oxy- 

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