SEARCH Articles Figures Tables Bronsted acid catalyzed vinylogous Mannich Bronsted acid catalyzed vinylogous Mannich reaction Carboxylic acid amid vinylogous Carboxylic acid halides vinylogous Vinylogization Vinylogous Vinylogous carboxylic acids Vinylogs carboxylic acid amides Vinylogs vinylogous Vinylogy