SEARCH Articles Figures Tables Benzene, 1,3-dimethoxyMannich reaction use in Houben-Hoesch synthesis Hoesch Hoesch ketone synthesis Houben-Hoesch ketone synthesis Houben-Hoesch synthesis Houben-Hoesch synthesis intramolecular Houben-Hoesch synthesis nitriles Indoles Houben-Hoesch synthesis Ketone synthesis by Hoesch reaction Nitrilium salts, N-alkylHouben-Hoesch synthesis The Houben-Hoesch Synthesis