New Synthetic Approach to Aminosquarylium Cyanine Dyes

Authors:
Publisher website
Google Scholar
Abstract
A novel synthesis of aminosquarylium cyanine dyes, based on the methylation of readily available squarylium dyes with methyl triflate, followed by nucleophilic substitution with appropriate aliphatic amines, was disclosed. By this procedure several new aminosquarylium cyanine dyes bearing benzothiazole, benzoselen­azole and quinoline nuclei were prepared.