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Lepidine, 2,8-dichloro- (4CI) synthesis

5synthesis methods
-

Yield:-

Steps:

Multi-step reaction with 3 steps
1: nitric acid; concentrated sulfuric acid / 0 °C
2: Raney nickel; methanol; dioxane / Hydrogenation.Die Einheitlichkeit des Praeparats ist nicht bewiesen
3: aqueous hydrochloric acid; sodium nitrite / Erwaermen der Rktlsg. mit Kupfer(I)-chlorid und konz. wss. Salzsaeure

References:

Krahler;Burger [Journal of the American Chemical Society,1941,vol. 63,p. 2367,2370][Journal of the American Chemical Society,1942,vol. 64,p. 2417]