Heterocyclen-Synthesen mit Monothiomalonsaeure-Amiden: Synthese von 3-Oxo-2,3-dihydroisothiazolopyridinen und 3-Oxo-2,3-dihydroisothiazolopyrimidinen
The monothiomalonic acid amides 5, prepared from cyanoacetamides 4 and hydrogen sulphide, react with diketones 6 or aldehyde derivatives 7 to give the 2-thioxo-1,2-dihydropyridine-3-carboxamides 8 which can be cyclised to the 3-oxo-2,3-dihydroisothiazolo
Schaper, Wolfgang
p. 861 - 867
(2007/10/02)
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