Synthesis of the laser dyes, AC2F, and related compounds
Abstract
The synthesis of the laser dye, AC2F, which is 2-oxo-6,9-dimethyl-4-trifluoromethyl-6,7,8,9-tetrahydro-2H-pyrano(2,3- b)(1,8)naphthyridine, in nine steps from readily available starting materials is described. AC3F, which is the homologous 6,8,9-trimethyl compound, is made in six steps. Several related azacoumarins and azaquinolones, which fluoresce in the range 393-482 nm in ethanol, have also been prepared. In addition, 2-oxo-6,9-demethyl-8-phenyl-4-trifluoromethyl-6,7,8,9-tetrahydro-2H- pyrano(2,3-b)(1,8)naphthyridine has been made from 7-hydroxy-1,4-dimethyl-2-phenyl-1,2,3,4-tetrahydro-1,8-naphthyridine and sulfonated to furnish a water-soluble fluorescer (473 nm).
- Publication:
-
Research Report
- Pub Date:
- June 1977
- Bibcode:
- 1977nwc..reptR....H
- Keywords:
-
- Chemical Reactions;
- Dye Lasers;
- Lasers;
- Organic Compounds;
- Fluorescence;
- Ketones;
- Quinoline;
- Lasers and Masers