| abstract |
There is also a method of producing 2-chloropyridine substituted at the 5-position, by reacting acetenamide with Vilsmeier inhaler, making the dialkylformamide with chlorine nm inhaler, the remainder being removed by reaction after completion of the reaction of the Vilsmeier reagent with acetenamide or by the addition of dialkylformamide and ultimately incorporating the reaction at 80 degC and 160 degC, wherein the dialkylformamide of the general formula, acetenamide and chlorine, is added parallel to the p0 it was released. \ t |