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3,5-Dibromosalicylaldehyde reacts with alkyl cyanoacetates in the presence of ammonium acetate to yield 4H- chromenes
D 2810 (OTTO) 3,5-Dibromosalicylaldehyde, 98% Cas 90-59-5 - used in the synthesis of Schiff base, 15N-Labeled N-(3,5-dibromosalicylidene)-methylamine.