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Iminium carbonic acid derivative salts. VIII. Electrophilic reactions of 2-methylthio-5,6-dihydro-1,3-thiazinium iodides, 2-methylthio-5,6-dihydrothiazolium iodides and 5-methyl-2-methylthiothiazolium iodides. Part II. With active methylene compounds |
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| Authors: | Wolfgang Hanefeld Helge Harms |
| Abstract: | The title compounds 1a-c and 2 werre reacted with several doubly activated methylene components to yield the cyclic ketene S,N-acetals 3-10 . |
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