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ChemicalBook CAS DataBase List 1H-Benzimidazole,4,7-dimethoxy-(9CI)

1H-Benzimidazole,4,7-dimethoxy-(9CI) synthesis

3synthesis methods
-

Yield:-

Reaction Conditions:

Stage #1: 1,4-dimethoxybezenewith nitric acid;acetic anhydride at 0; for 3 h;
Stage #2: with hydrogenchloride;tin for 2 h;Heating;
Stage #3: formic acid for 5 h;Heating;

References:

Alvarez, Frédéric;Ghérardi, Arnaud;Nebois, Pascal;Sarciron, Marie-Elizabeth;Pétavy, Anne-Fran?oise;Walchshofer, Nadia [Bioorganic and Medicinal Chemistry Letters,2002,vol. 12,# 6,p. 977 - 979]